https://www.opal.academy/home daily 0.75 2023-09-22 https://www.opal.academy/home/2021/11/18/name-bio-ysprt-93fdf-a4ymd monthly 0.5 2025-07-07 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/51ac0319-0a04-42dd-b46e-458ad834dcca/Greg+Sherman+Portrait007.jpg Blog - E Gregory Sherman - Make it stand out Portrait of E Gregory Sherman (Greg Sherman) courtesy of Jewellery World Magazine January-February 2003 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/7569bf3c-4b51-4845-afc6-54280c89749e/Dwelling+at+lightning+Ridge.JPG Blog - E Gregory Sherman - Make it stand out A photo of the Brady House mentioned in the text, the house is still in Lightning Ridge, sometimes also known as the Walford’s House. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/001765d4-4320-48f0-8f7c-37bcd664f22f/Sherman-14Feb22N033.jpg Blog - E Gregory Sherman - Make it stand out From the Sherman archives, Ernie Sherman and a young Greg Sherman with boxes of opal to post! https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/49d7e7bf-5632-4b7d-84d8-41a141234200/EG+Greg+Sherman+Portrait+Office+133.jpg Blog - E Gregory Sherman - Make it stand out Greg Sherman in the office in CML building Martin Place, Sydney. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/241b787c-f325-44f7-b089-ea64faa6b44e/Sherman-Archives+Cutting+Room.jpg Blog - E Gregory Sherman - Make it stand out The Sherman opal cutting rooms in the Office in Martin place, Sydney. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0450e37f-723a-471e-9a8b-df0057ec9356/Sherman-Archives-Office+EGS-2+-Mum-wife-Warwick-SydneyC1950004.jpg Blog - E Gregory Sherman - Make it stand out Greg and Norma Sherman. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/8fd83a0c-fe90-49d4-bb4f-7b59bd456d7e/Sherman+Archives+Transparencies089.jpg Blog - E Gregory Sherman - Make it stand out Greg Sherman outside the Sherman dugout in Andamooka. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/925b838d-1f1c-4772-ac74-7a21abf58eaf/Sherman+Transparencies110.jpg Blog - E Gregory Sherman - Make it stand out Opal Air https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/e86bd465-4dcb-4c18-8e6f-54eabcfc41e8/EGS-Showing+OlympicAustralis003.jpg Blog - E Gregory Sherman - Make it stand out Greg Sherman with two pieces of the Olympic Australis. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/be7bb20f-37ac-4f5b-8db2-7dc54c34eb45/EGS-Showing+OlympicAustralis002.jpg Blog - E Gregory Sherman - Make it stand out A photo of Greg Sherman and Helen George. Editor, you can read the article from Australasian Post below. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ad134ea6-d343-496b-889e-0a5c3324fc06/Sherman-Archives-+Transp-OlympicAustralis1956-1_edited.jpg Blog - E Gregory Sherman - Make it stand out A transparency photograph of the Olympic Australis from the Sherman Archives . https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/976841e5-209a-4480-9186-2b61366980ba/Greg+Sherman+Boulder+bust+%28003%29.jpg Blog - E Gregory Sherman - Make it stand out A carved boulder opal bust of Greg Sherman. Carved by Kevin Ma, and with participation from the Berta’s, the head is carved form a single Lightning Ridge nobby, and the shoulders from Queensland boulder opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1dccbd37-2cff-40d7-8395-df4c4a07af3e/EGS-Showing+OlympicAustralis004.jpg Blog - E Gregory Sherman - Make it stand out Another newspaper clipping talking about the Olympic Australis. Editor: we will be posting a discussion on the Olympic Australis in our section on famous opals at a later time. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ca74e381-59ce-4f4c-9c6b-f73476cc3773/EGS-NP-Houston+Post-6Nov1986-GregSherman-Time+heals+earths+wounds+into+brilliant+opals_Page_1.jpg Blog - E Gregory Sherman - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1a79a1ea-e2a0-4d84-b3c6-851e3a14d744/EGS-NP-Houston+Post-6Nov1986-GregSherman-Time+heals+earths+wounds+into+brilliant+opals_Page_2.jpg Blog - E Gregory Sherman - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2020/2/22/anthony-tony-smallwood-fy93r-zejmk monthly 0.5 2025-06-16 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5ceb4ec3-8f98-41c5-aae9-8319fc54671d/Alan+Bartram.jpg Blog - Alan Bartram OAM - Make it stand out Alan Bartram OAM https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/e69fb788-74ca-4a4d-8520-147c353b94ff/Bartram003.jpg Blog - Alan Bartram OAM - Make it stand out An extract from the Summer 1993 issue Volume 3 of Gemline, the magazine of the Australian Gemstone Industry Association https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/cdbdcd85-ac54-4cd9-b1d6-f5113d49296e/Fire+of+Australia.JPG Blog - Alan Bartram OAM - Make it stand out The Fire of Australia Mined by Harry Bartram at the eight mile field in 1946 weighing approximately 5000 carats. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/dcbb6a44-33be-4199-a36b-e41b687a4780/Heaven%27s+Gate.JPG Blog - Alan Bartram OAM - Make it stand out Heaven’s Gate opal https://www.opal.academy/home/2019/6/27/andamooka-opal-fields-4p53b monthly 0.5 2025-05-30 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680073001-N0KBX1D9FDVE30382UP1/OldMiningAndamooka9.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680082992-RMNBGNGE0B8PS011OBF0/WA2005+076.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680091370-HUUT7N6I952HDYIEE31F/WA2005+073.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680488093-CXAT48XG2G5AZMTWRHRO/UgrndAnda2.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680095991-UMVGK6JAX09GG2A51QMD/WA2005+071.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680503444-MVFMFXQ30LEW01IX81HW/UgrndAnda1.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680512131-2P5QO8GDRA83D1XR3ZT1/ProfileWhiteDam.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680551766-P4WSPGPU12JAJADQJGOE/Andamooka.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680518694-TBT0S9AXNNAMRV1YIA3H/TunnelWhiteDam.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680559365-W85CGA4HO91AZ32I562B/andamooka3.jpg Blog - Andamooka Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4680e9d3-b310-43b1-b218-daaeca77ce5b/Andamooka+aerial+view.+18th_edited.jpg Blog - Andamooka Opal Fields - Make it stand out An aerial photograph of the Andamooka opal fields taken by Terry Coldham https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1d9ff36a-3b45-4605-abab-05476f383bb9/ErnieSherman017.jpg Blog - Andamooka Opal Fields - Make it stand out Ernie Sherman outside his dugout on Opal Creek in 1932. (Sherman Archives) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5c752ec9-662d-434a-9163-3bdfa9e7b07f/ErnieSherman016.jpg Blog - Andamooka Opal Fields - Make it stand out Ernie Sherman with the vehicle used for transport between Andamooka Station and the opal fields. The vehicle belonged to Sam Brooks. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/a0db17b0-9298-4f2c-a157-521a668b2a10/Sherman+Archives+Transparencies089.jpg Blog - Andamooka Opal Fields - Make it stand out Greg Sherman outside his dugout in Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9568ed4c-1e16-4d0a-9ab8-8adab18e5ee6/Sherman-17Feb22N-ANda074.jpg Blog - Andamooka Opal Fields - Make it stand out Andamooka after an outback storm, Sherman Archives https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/616c95a1-358d-49bc-bf96-03b5a1faa638/Opal+and+TRains-120014_edited.jpg Blog - Andamooka Opal Fields - Make it stand out A view of the Andamooka township about 1999. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4df0a894-526c-49d5-a3de-48736c588438/Preserved+Dugout+Andamooka.jpg Blog - Andamooka Opal Fields - Make it stand out A preserved dugout on opal creek in Andamooka township https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/53194646-e8c0-433b-8a14-6872da926c90/Andamooka-Lake+Torrens-179_edited.jpg Blog - Andamooka Opal Fields - Make it stand out The author on the salt flats at the edge of Lake Torrens. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1625630547783-TI83V0X23EUCLZFA8XQS/Andamooka+Geo006.jpg Blog - Andamooka Opal Fields - Make it stand out A geological map of the Andamooka precious stones field Dept. Minerals and Energy SA, Handbook No.5 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1625630606638-B8QN1UXWVTK7PRYCT7IU/Andamooka+Geo007.jpg Blog - Andamooka Opal Fields - Make it stand out Geological stratigraphy and key for the Andamooka precious stones field. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/e9a7af0d-cd95-4297-81ca-624a1ed4578c/Andamooka+freeform+Crystal+opal+31cts+-+Sherman2.jpg Blog - Andamooka Opal Fields - Make it stand out A trio of crystal opal cabochons from Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d6ec626c-95df-47eb-9485-34b373956493/Andamooka+Black+-+Triangle.jpg Blog - Andamooka Opal Fields - Make it stand out Black Opal from Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1b853755-28f4-4fae-9e04-ec0086ce14cc/Nice+matrix.jpg Blog - Andamooka Opal Fields - Make it stand out A fabulous specimen of treated Andamooka Matrix opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/b690ea8c-f42a-4f4e-acb5-0bf5b5be395f/Treated+Andamooka+concrete.jpg Blog - Andamooka Opal Fields - Make it stand out Large pieces of treated Andamooka matrix opal known colloquially as ‘concrete’ and marketed as “rainbow opal” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/70e441c7-66ae-4f48-b9de-e9ddc6d13dfa/OpalPendant2_edited.jpg Blog - Andamooka Opal Fields - Make it stand out An opal pendant. vibrant green blue precious opal with some ripple potch lines giving artistic character to the opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/2a621dc4-d7f4-4835-a146-ebb62875a5a7/IMG_0617_edited.jpg Blog - Andamooka Opal Fields - Make it stand out A treated matrix opal necklace https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/a8ed9a12-fe85-4a06-b79f-f80b53e712d9/Taubers3.jpg Blog - Andamooka Opal Fields - Make it stand out A large specimen of matrix opal at Peter Taubers Opal museum. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/e7d91822-dc90-4699-94af-f1a30daaa606/Taubers7.jpg Blog - Andamooka Opal Fields - Make it stand out Precious crystal opal in a specimen of what is colloquial called a “Blob” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/3830768e-57c3-4b6e-b640-e3e00f61b8d3/DSC_0764.JPG Blog - Andamooka Opal Fields - Make it stand out An Opal conglomerate? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/541e2572-d170-40df-83f3-9c2ce153cca4/DSC_0766.JPG Blog - Andamooka Opal Fields - Make it stand out An interesting infilling of precious opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/764c9d65-660c-486c-8d45-7cedb5277776/WA2005+073.jpg Blog - Andamooka Opal Fields - Make it stand out A bucket elevator in Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/db9c10ac-1322-4196-bde3-e82205972240/OldMiningAndamooka9.jpg Blog - Andamooka Opal Fields - Make it stand out A York Hoist at White Dam in the Andamooka fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6005e617-2044-471d-8065-969ae48b7f02/UgrndAnda1.jpg Blog - Andamooka Opal Fields - Make it stand out Underground digger in Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/80d28e2f-5d81-411c-b776-ff8e0e507fe7/Smallwood242.jpg Blog - Andamooka Opal Fields - Make it stand out Moving the underground digger. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/30e1bea1-0a71-4890-bdab-75ce8a4b0d83/Andamooka+87-6998.jpg Blog - Andamooka Opal Fields - Make it stand out A view of Andamooka town https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/38661c66-d0d5-489d-ace8-f52b05e19cae/Opal+Fields-Andamooka.jpg Blog - Andamooka Opal Fields - Make it stand out Above ground opal dwellings in Andamooka with the mining fields in the background https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/22d6547c-6ea3-40b3-9723-6b08c273cec9/Thomas1.jpg Blog - Andamooka Opal Fields - Make it stand out Tourism Rocket Park in Wommera on the way to Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4e1fa7e5-85c8-4d5d-9282-0b5054fa3078/accomodations-andamooka-600x450.jpg Blog - Andamooka Opal Fields - Make it stand out The Dukes Bottle house https://www.opal.academy/home/2020/8/17/Two interesting specimens of boulder matrix opal-ttxz2 monthly 0.5 2025-05-30 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4b399b89-da9a-47e5-802d-5e7ea33171e4/Magnetic+Matrix+7_edited.jpg Blog - Magnetically attracted boulder ironstone matrix opal - Make it stand out A free from cut flat cabachon of the magnetically attracted ironstone boulder matrix opal seen recently https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/77db262f-9c28-47bf-a295-568760d47ec6/WA-3_edited.jpg Blog - Magnetically attracted boulder ironstone matrix opal - Make it stand out A micrograph of the stone pictured left at a magnification of approximatley 20x https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5571d571-6a26-428f-97d2-3b49273b5e3b/WA-8_edited.jpg Blog - Magnetically attracted boulder ironstone matrix opal - Make it stand out A larger magnification (approx 45x of the magnetic ironstone matrix opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/8f595a23-671b-4a7b-aabe-74bac71dcd97/Magnetic+Matrix+4_edited.jpg Blog - Magnetically attracted boulder ironstone matrix opal - Make it stand out The reverse (back side of the stone. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/673b249a-f3c0-4ed1-9540-f69457e244c9/Streak+test_edited.jpg Blog - Magnetically attracted boulder ironstone matrix opal - Make it stand out Photograph of the streak test. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/7b6c702d-69ac-47d6-a02c-defded1981df/Koriot+matrix_edited.jpg Blog - Magnetically attracted boulder ironstone matrix opal - Make it stand out Koroit “bubble’ ironstone matrix opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/332be7af-223d-40f4-847d-5742fd2d042a/Haematite+ironstone+yowah+nut.jpg Blog - Magnetically attracted boulder ironstone matrix opal - Make it stand out Small Yowah nut polished haematite like specimen https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5306aa04-7d26-4bd1-9430-6703e9058a71/Chocolate+Brown+Matrix.jpg Blog - Magnetically attracted boulder ironstone matrix opal - Make it stand out Dense dark chocolate brown ironstone matix opal https://www.opal.academy/home/2019/6/27/coober-pedy-opal-fields-wkgml monthly 0.5 2025-04-02 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561678310945-W44K3WQVBSIHRAV0IANN/CooberSign.jpg Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561678543577-DITRSTSWWFM4BV392KH4/TrackSign.jpg Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561678574696-TZCKSYSILMPO1RR8N504/Opencut4.jpg Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561678556062-UT4LBCOKK1J1FZPPXBQX/Town1.jpg Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1743482750939-91J94OC9DIS66PAZ2XV3/DSC_0738.JPG Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1743485391450-QQ13HC61JNDYDQFDPF4F/DSC_0735.JPG Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1743485461977-6QRHM72D0BC14T3LUE8L/CooberPedy07_058.JPG Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1743487014455-N9YFZN7X128S1WZJ4FPK/Sturts+Desert+Pea2.jpg Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1743485501514-S02TLRBC2S5H8KMZ8FAR/Dugout1.jpg Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1743485596088-X1XJ69APOCE65IZTK06H/CooberPedy07_142.JPG Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1743485661991-CQ7QJS65GLWTS54TDCTR/WA2005+087.jpg Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1743485698122-V1WNZ9HR6EBEOR8P5FFJ/WA2005+080.jpg Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1743485843015-2VH5W0VRV02AYM7WOJR7/IMG_8466.JPG Blog - Coober Pedy Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/97e3cd1c-d420-48c6-ad6f-9f67304fcf8b/William+Creak+Road+entering+Coober+Pedy.JPG Blog - Coober Pedy Opal Fields - Make it stand out The road into Coober Pedy from William Creek, after some rain, so it looks green. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f04fc309-2047-4a58-853a-b5fc41739c29/Dry+Conditions+-+AScar_edited.jpg Blog - Coober Pedy Opal Fields - Make it stand out Dry conditions on the same road. William Creek was the drop off point from the original Ghan Railway. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ce2e0779-a231-49be-a47c-9363c83b6732/Coober+Pedy+FieldsWAtrip+2005.jpg Blog - Coober Pedy Opal Fields - Make it stand out A sole blower on the opal fields. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6f816dee-58b0-4ec9-94aa-3b10f299a71c/Coober+Pedy+Fields+WAtRip+2005.jpg Blog - Coober Pedy Opal Fields - Make it stand out The mining field lanndscape on the Olympic field Coober Pedy. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/36f27f19-2034-4859-8251-09e4cd2868d7/Sherman-17Feb22N-CP047.jpg Blog - Coober Pedy Opal Fields - Make it stand out An early photo of Ernie Sherman mining at Coober Pedy. Sherman Archives. Ernie Sherman made the first opal-buying trip to Coober Pedy in 1919, a journey documented in the Sherman archives and A Journey with Colour (Page 25) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/90e8faa6-0228-4737-a39c-e3852e71f365/Sherman-14Feb22P009.jpg Blog - Coober Pedy Opal Fields - Make it stand out An early vista of dugouts at Coober Pedy. Sherman Archives. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/14458d33-2049-46e0-bd2b-43b6235398c2/ShermanArchives-Post+Office-CooberPedy_edited.jpg Blog - Coober Pedy Opal Fields - Make it stand out Clients outside the Post Office in Coober Pedy. Sherman Archives. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/dbcc510d-d8de-4d22-beaf-c71c6103f38e/Coober+Pedy+MAp003.jpg Blog - Coober Pedy Opal Fields - Make it stand out An enlarged area of the geology around the Coober Pedy Town Center https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/991b7898-ab76-43a8-a275-ad9187324d2f/Coober+Pedy+Map006.jpg Blog - Coober Pedy Opal Fields - Make it stand out A cross section of the opal fields in Coober Pedy https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/440aad37-f5f3-459c-ac2b-9efe01b98c19/Coober+Pedy+Map004.jpg Blog - Coober Pedy Opal Fields - Make it stand out Part of the stratigraphy of the Coober Pedy opal fields. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/b2c2b6b6-c696-4055-93dc-b15929161673/OpalSA9mile-Rough+.jpg Blog - Coober Pedy Opal Fields - Make it stand out Light-White Seam opal from 9 mile field. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/52aa86e0-56da-4e20-81fe-6745966d00c7/OpalMar-+Mile+Rough_edited.jpg Blog - Coober Pedy Opal Fields - Make it stand out Light-White seam opal from 14 mile field. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d1cb3033-b3f1-4a45-8969-452874f16183/OpalSAOlympic+Rough.jpg Blog - Coober Pedy Opal Fields - Make it stand out Light -white opal from the Olympic field. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/2d5d0b9b-4bcd-4f32-a97e-c9834c2d0463/CooberPedy+Precious+opal+fossils+2.jpg Blog - Coober Pedy Opal Fields - Make it stand out Coober Pedy opal fossils https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/3a02d66e-3633-415e-8ac3-edbb7cecd223/CooberPedy+Precious+opal+fossils+1.jpg Blog - Coober Pedy Opal Fields - Make it stand out Coober Pedy Opal fossils https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/2d82ce9d-5de3-4aba-a35f-d3e251fd6b02/SHerman+-+S3.jpg Blog - Coober Pedy Opal Fields - Make it stand out A light opal and diamond pendant. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ba395944-594d-4bc0-addf-cd49f38fca56/Light+Opal+ring-020424-3.jpg Blog - Coober Pedy Opal Fields - Make it stand out A oval vibrant multi coloured crystal opal in a dress ring.. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/04ac4fbb-4d08-4a3e-9575-e49d48fdeadf/CalweldSA5.jpg Blog - Coober Pedy Opal Fields - Make it stand out A calweld drilling rig. These drills make holes about 3ft in diameter. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ee2e395a-5a09-4fa6-9e1e-d50ab40c515f/BloweCP6.jpg Blog - Coober Pedy Opal Fields - Make it stand out A ‘Blower’ on the Coober Pedy fields north of town . https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/3787ca8a-64b5-4ac8-972f-589914420702/IMG_8429.JPG Blog - Coober Pedy Opal Fields - Make it stand out Loading opal dirt into a trommel and noodling machine courtesy of colleague Dale Price https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/166b5b4d-ef5d-4f22-a12c-61af3f8fe08f/IMG_8426.JPG Blog - Coober Pedy Opal Fields - Make it stand out A large established noodling machine with a bucket elvator, courtesy Dale Price. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/06407bfa-7fc7-4b68-9d04-1e93c1b06a04/Underground+CP07-Bucket+elevator.jpg Blog - Coober Pedy Opal Fields - Make it stand out Underground in Coober Pedy with bucket elevator used for extraction. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f2ab8696-9001-4041-985f-07f5087ae236/Underground+tunnling+CP07_044+Group.jpg Blog - Coober Pedy Opal Fields - Make it stand out Mining drive excavated by a tunnelling machine https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/038e85df-1187-4acf-860b-b174ac765a2e/Opencut+CP07_011.jpg Blog - Coober Pedy Opal Fields - Make it stand out An open cut being backfilled and with a self unloading hoist https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/e47062a2-9469-4b83-9226-54461b33d5ed/Opencut+CP-opal+Trek.jpg Blog - Coober Pedy Opal Fields - Make it stand out Modern opal mining with increasingly heavier equipment. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/c03c0d2a-d01f-491a-96a9-493c6ef0a921/Dugouts+CP.jpg Blog - Coober Pedy Opal Fields - Make it stand out Coober Pedy dugouts in preparation. The dugout on the right has been built complete with entrance. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/16ad6c51-a85b-42ea-983a-5bb05f65e16a/CooberPedy07_102.JPG Blog - Coober Pedy Opal Fields - Make it stand out Entrance to the dugout with interior photos below https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/c801b7d1-c2b8-4faa-9a99-f1f6bee66466/WA2005+122.jpg Blog - Coober Pedy Opal Fields - Make it stand out Internal view of a dugout in Coober Pedy. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/b170508f-e7c3-4a3b-a71b-f8c3574192b5/CooberPedy07_Dugout.jpg Blog - Coober Pedy Opal Fields - Make it stand out Interior of a dugout in Coober Pedy https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/611b4fe7-de5a-46aa-ae1a-733ac10e073c/Underground+Church+-CooberPedy-132.jpg Blog - Coober Pedy Opal Fields - Make it stand out A room in an underground church in Coober Pedy. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/c4f2b8a3-4524-416d-95b4-d971dbde0d1a/Moon+Rise+in+CooberPedy07_028.jpg Blog - Coober Pedy Opal Fields - Make it stand out Moon Rise over Coober Pedy town in the twilight. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/7226ba8d-c8a8-40bb-b634-3714ec63cca4/WA2005+Breakaways-Coober5.jpg Blog - Coober Pedy Opal Fields - Make it stand out The edge of the Stuart Range at the “Breakaways” reserve. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/cf22c768-9af1-424f-a6ef-60d4eb91db21/Sturts+Desert+Pea.jpg Blog - Coober Pedy Opal Fields - Make it stand out Sturts Desert Pea https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/deb77c12-269d-49ec-b5e0-00358050fda4/DSC_0743.JPG Blog - Coober Pedy Opal Fields - Make it stand out View of a mesa on the breakaways road https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/37af6bc2-3025-4962-b32d-90b450f45ce1/CP2021-AGS-DogFence2.JPG Blog - Coober Pedy Opal Fields - Make it stand out The author at the “Dog Fence”, a fence designed to restrict the movement of dingoes. https://www.opal.academy/home/2019/7/11/people-lssnl monthly 0.5 2025-03-04 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/3db3e9ab-49ed-4480-8c32-fc5f8a306e6b/Wollaston007.jpg Blog - tullie cornwaith Wollaston - Make it stand out A portrait of Tully Cornwaith Wollaston, (TCW). https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9bc6eb99-84d0-4a26-9765-f85f3508e541/OpalGemm+of+the+never+never-Cover.jpg Blog - tullie cornwaith Wollaston - Make it stand out The cover of TCW’s Diary as published in 1924 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/078ca15a-f29f-4ca2-a9d7-105da573a549/Pub+at+Maree_edited.jpg Blog - tullie cornwaith Wollaston - Make it stand out The Marree (Hergott Springs) Hotel in 1999 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/986046fd-b35f-4ac7-a21a-d878bd155560/Picture1.jpg Blog - tullie cornwaith Wollaston - Make it stand out The Road out of Marree on the Odnadatta Track https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/dca4e84f-1c65-4482-9089-7884a5b65c46/Coopers+Creak-2.jpg Blog - tullie cornwaith Wollaston - Make it stand out Cooper’s Creek, Windoora Crosssing https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ad80bb6a-4c14-4446-9e61-8b7ef8430310/Kyabra+Hills.jpg Blog - tullie cornwaith Wollaston - Make it stand out The “far off Kyabra Hills” in central Queensland https://www.opal.academy/home/2020/7/8/valuation-m2wll monthly 0.5 2024-10-30 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/01cd238d-a6dc-4867-9160-196752b6b7b2/SH-4+-+red+rolling+flash+pendant.JPG Blog - Step by Step opal valuation - Examples - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/2e70d099-55ca-4f87-b2fb-461fd2136a14/SH-5+-+green-orange+flash+pendant+-2.JPG Blog - Step by Step opal valuation - Examples - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2021/11/18/name-bio-ysprt-93fdf monthly 0.5 2025-06-16 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/c825e545-18ac-40fa-b540-1bec2c35f10e/KL+2014_3.jpg Blog - Karen Lindley AM - Make it stand out Portrait of Karen Lindley AM https://www.opal.academy/home/2020/8/17/OPAL IN ETHIOPIA monthly 0.5 2024-01-13 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/8da48fef-f794-43b6-bb24-96ab648e08fa/Ethiopia063GG1996.jpg Blog - OPAL IN ETHIOPIA - Make it stand out The geographic area of Ethiopia map in: Gems & Gemmology, Vol32, 2, See in literature below. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/27d28ff5-b575-4787-896e-7a40a1370bf7/Ethiopia065.jpg Blog - OPAL IN ETHIOPIA - Make it stand out A photo of a village in the Mezezo area, Telahun Yohannes. in Gems & Gemmology Vol32, 2. See reference below. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/a1e2e55f-4ede-43da-8ff0-aedbc6a8a3b4/Ethiopia061GG%2C+2010.jpg Blog - OPAL IN ETHIOPIA - Make it stand out A map of the geography around the Ethiopian opal mining areas. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/26a6f16f-0892-4cf4-956b-2f866a12c1fe/Boris+Can+Min+2017.jpg Blog - OPAL IN ETHIOPIA - Make it stand out Map of geology of Ethiopia in Chauvire and Rondeau listed below. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9b985cfd-d185-468e-be92-748c20465a5c/Ethiopia067.jpg Blog - OPAL IN ETHIOPIA - Make it stand out Stratigraphic Cross-section of the mining area Mezezo, Yita Ridge Ethiopia. The geology is described in article listed below by Ayalew and Pik. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9c99c09b-036b-4c7c-a29b-137e7476bbe6/Ethiopia066.jpg Blog - OPAL IN ETHIOPIA - Make it stand out An image showing the opal bearing strata in Wegel Tena, Wollo Ethiopia as described by Rondeau et. al. Gems and Gemology listed below. Photo: F. Mazzero. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f62c867a-a333-40b0-9b43-a075949590d3/Ethiopia068.jpg Blog - OPAL IN ETHIOPIA - Make it stand out An image showing the black opal bearing layer in the “Stayish” area as described by Lore Kiefert and Pierre Hardy in the literature listed below. photo: Pierre Hardy. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/84c0d4f6-db87-4530-9762-f1c030feba11/Ethiopian+Nodules.jpg Blog - OPAL IN ETHIOPIA - Make it stand out A group of Ethiopian opal nodules https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/72520444-54df-43b9-a30d-bcb12c3a8015/Ethiopian+nodule1.jpg Blog - OPAL IN ETHIOPIA - Make it stand out A “Chocolate” reddish brown opal nodule https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/146d0898-a341-43b9-a80e-0bee7a82b7fc/Ethio-Black-Justin-1-2.JPG Blog - OPAL IN ETHIOPIA - Make it stand out A free form Black precious hydrophane opal cabochon showing a subdued gree, orange Play-of-colour. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/e667e1e8-d245-4b0d-95e3-c859d2467459/Ethio-nobby-1-2.JPG Blog - OPAL IN ETHIOPIA - Make it stand out An Ethiopian Black precious hydrophane opal nodule. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/7aa1c2dc-9a18-40b1-85d1-7f05ab9f59ec/Ethiopian+brown-Black+nodule.jpg Blog - OPAL IN ETHIOPIA - Make it stand out An Ethiopian Brownish black precious hydrophane opal nodule. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/fe194a73-385d-44b0-91d8-9a7105eac3c8/Ethiopian+Black+1.jpg Blog - OPAL IN ETHIOPIA - Make it stand out A parcel of black precious hydrophane opal nodules. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0105461f-e3c4-46ff-a500-ccab3624f8ac/opals+ethiopia+002_edited.jpg Blog - OPAL IN ETHIOPIA - Make it stand out A parcel of Ethiopian Light crystal precious hydrophane opal cabochons https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9ff7cdea-c713-426b-bc25-7b981a45564f/opals+ethiopia+026.JPG Blog - OPAL IN ETHIOPIA - Make it stand out A parcel of rough light precious hydrophane opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d93ce9a3-605d-4f4e-b2ee-1496710eaccd/Hydrophane+15m.JPG Blog - OPAL IN ETHIOPIA - Make it stand out A small slab of precious hydrophane opal which has been immersed in water for approximately 2 minutes, it can be observed that the water is infiltrating the opal, and the opal is becoming transparent. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/72a873c5-d209-4c65-8668-17d4e17174d3/EthiopianOpal_36.jpg Blog - OPAL IN ETHIOPIA - Make it stand out Two specimens of precious hydrophane opal. the specimen on the left has dried, and turned opaque. The specimen on the right has absorbed the water it was immersed in and become transparent. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/42d38cb2-7b3f-4cb8-874a-76d7bd6e0d08/Treated+opal+2.JPG Blog - OPAL IN ETHIOPIA - Make it stand out Dyed colour treated Ethiopian hydrophane opal, pieces showing subdued play of colour. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1bd41ed2-940f-4951-895e-d91b19fab768/IMG_8873.JPG Blog - OPAL IN ETHIOPIA - Make it stand out A Strand of smoke treated Ethiopian precious hydrophane opal beads. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5a337422-50a1-4c0c-9973-5bd15034941a/Opal-Ethiopian%2C+whiteish+blobs9.jpg Blog - OPAL IN ETHIOPIA - Make it stand out Ethiopian with greyish odd shaped blobs and black spots with halos https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/7e6534c2-8dad-42c9-a31a-466eb89bfcec/Opal-Ethiopian%2C+Blackspots+with+halo4.jpg Blog - OPAL IN ETHIOPIA - Make it stand out Transparent Ethiopian with black spots and halos. There is some discussion in literature that the black spots may be octahedral crystals of magnetite. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/2bd36485-8100-494d-b46d-dde9267a49cd/Ethio-opal-floriette+inclusions.jpeg Blog - OPAL IN ETHIOPIA - Make it stand out Floriettes of inclusions that may be cristobalite. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0fd44511-a591-494f-9328-e8851fb462b3/Ethiopian5.jpeg Blog - OPAL IN ETHIOPIA - Make it stand out So called “Digit pattern” as seen in an Ethiopian hydrophane precious opal. https://www.opal.academy/home/2023/9/21/scientist-template-pa3za monthly 0.5 2024-01-20 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/457f8f57-9a94-4388-aa0b-0d4e1439f824/Don+Hoover.jpg Blog - Don Hoover - Make it stand out Don Hoover. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/cd5bb03f-42d7-4cb2-8ef1-1cc725356f1c/3.png Blog - Don Hoover - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/281d6277-af3e-4473-97b9-d81ab13786e3/1.png Blog - Don Hoover - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2021/7/7/laurie-aldridge-c2xx6 monthly 0.5 2024-01-20 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626062895385-A3QPE06PS6XJ9YAC5OGE/Laurie20180425.jpeg Blog - Laurie Aldridge - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f2c94167-b933-4c44-a37e-d04e75c6a8a2/Experience.png Blog - Laurie Aldridge - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/a61278bf-c9ad-4f55-ad82-400b770d25a1/Opal+Interest.png Blog - Laurie Aldridge - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/25565ca2-e4e6-4a1b-974e-6e8f07cba12d/Investigations.png Blog - Laurie Aldridge - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2023/9/21/scientist-template-g8flc monthly 0.5 2024-01-13 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1112583e-f715-4301-8231-4b7fedfcda32/Picture1.jpg Blog - Boris Chauviré - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/cd5bb03f-42d7-4cb2-8ef1-1cc725356f1c/3.png Blog - Boris Chauviré - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/281d6277-af3e-4473-97b9-d81ab13786e3/1.png Blog - Boris Chauviré - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f5c23d8a-8d8e-453c-ac0b-30853a4e68eb/2.png Blog - Boris Chauviré - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2019/6/27/white-cliff-opal-fields-stcsd monthly 0.5 2023-10-27 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561676850154-KLOW5CW2937TYQSFX26S/DarlRiver.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561676859171-6KYBJIMJ7T8Y7BGOK12U/Sunset2.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561676856646-A7YE7NYUC94BP07KCDUI/FordMine1.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561676870755-4EGM3WEC3STZMWHZYD85/Town7278.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561676879278-37OY6XW1A0ECVRFCJTM2/WCliffs2.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1697782973471-DUCT39NYH0QGK4AF1ZSW/White+Cliffs047.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1697783020619-DFC28TIKZ73YVPAQY94H/IMG_0137_edited.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1697783055134-O4MO4S2UQJ6KE6R0HBXB/White+Cliffs-2789.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1697783097138-NU53MS5QMDQ24D9073FA/White+Cliffs-7292.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1697783135123-TXXRZL2QN0DU8Q0V8UF3/White+Cliffs-7293.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1697783167571-CTTFMIIL94SU4X66WRQ3/White+Cliffs-7305.jpg Blog - White Cliffs Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/850df470-57bf-41cc-9f04-138ffc7adee6/WhiteCliffs-1_edited_edited.jpg Blog - White Cliffs Opal Fields - Make it stand out An early map, Circa 1894 of the White Cliffs opal fields, on the Momba pastoral Holding, Parish of Kirk, County of Yungnulgra, Albert Mining District, Wilcannia district, Western Division NSW. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/e6926acd-c3e2-47a6-85e4-37f33b6995b0/Cover+-+Cram+-+White+Cliffs+Vol2A.jpg Blog - White Cliffs Opal Fields - Make it stand out the cover of Len Cram’s “A journey with Colour” the most up-to-date history of the White Cliffs opal fields. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/792dadb2-36e6-43bc-ad4f-204d748e1045/SaltBushRainbow+Cover_edited.jpg Blog - White Cliffs Opal Fields - Make it stand out the cover of a text by Gwen Rowe, White Cliffs Historical Society detailing the early history of opal mining in White Cliffs. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/25ff9d86-cf37-4681-bed6-3cdced026777/Sherman-Archives+-White+Cliffs-Town+from+Turleys+c1906.jpg Blog - White Cliffs Opal Fields - Make it stand out White Cliffs Town c1906 Photo: Sherman Archives, postcard from Centenary celebrations 1990, White Cliffs Historical Society. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/7c8f7632-ecce-400a-adb0-ed393ab04266/Sherman-+White+Cliffs-Opal+King+Hotel-c1901.jpg Blog - White Cliffs Opal Fields - Make it stand out The Opal King Hotel, White Cliffs, c1901, Sherman Archives, postcard from Centenary celebrations 1990, White Cliffs Historical Society https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1c629672-da98-4b12-95f0-b061cf07faba/Wollaston007.jpg Blog - White Cliffs Opal Fields - Make it stand out Tullie Cornwaith Wollaston, the father of the Australian opal industry. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/b9dc1852-98b4-4429-afa0-046dba538a19/Murphy009.jpg Blog - White Cliffs Opal Fields - Make it stand out Edmund Murphy, early opal pioneer and commercial buyer in White Cliffs https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/aa37d9bd-0608-437a-ae79-bd4e49953f2d/Sherman008.jpg Blog - White Cliffs Opal Fields - Make it stand out Ernest (Ernie) Sherman, founder of the early opal industry, in Australia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ce299412-f60f-4a4e-9e48-8ab3d459be47/Monument8.jpg Blog - White Cliffs Opal Fields - Make it stand out Monuments placed in 1990 at the centenary of the White Cliffs https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/553f66a4-3c39-4b8d-a7b4-c6b9ca1d7e6a/White+Cliffs-7292.jpg Blog - White Cliffs Opal Fields - Make it stand out Pioneer Plaque to early White Cliffs personalities https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/65c38b66-f546-4661-a63a-55cf72f8fad3/TullyWCliffs7.jpg Blog - White Cliffs Opal Fields - Make it stand out Close up of the memorial from celebrations of opal mining in White Cliffs regarding TC Wollaston. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6dd2bd47-6bb6-4cc7-848d-98c198d2bd55/White+Cliffs-7284.jpg Blog - White Cliffs Opal Fields - Make it stand out White Cliffs Town, c https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f0451c0e-46ee-4610-ae59-24f5b5c07cee/White+Cliffs-7296.jpg Blog - White Cliffs Opal Fields - Make it stand out Mining at White Cliffs, westside, The Blocks https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9f3e17e1-e8cd-462a-90be-dab68c02b522/Geology+White+Cliffs024.jpg Blog - White Cliffs Opal Fields - Make it stand out An Extract for the 1:250,000 geological map , White Cliffs Sheet. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/e4bd20a0-748e-43a7-93d5-d188b86e44cb/Map+-+White+Cliffs+Geology-Extract+DeptMines+Vol7+%281959%29-2_edited.jpg Blog - White Cliffs Opal Fields - Make it stand out A map of the White Cliffs Opal fields from NSW Dept. of Mines Technical Reports Volume 7, 1959 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ce166ecd-e0e1-40ed-8cd9-3cbd52fbf149/Geology+White+Cliffs.jpg Blog - White Cliffs Opal Fields - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/cbda6980-99f8-4be2-b362-66403ba56e84/OpalWhiteCliffs-Light+opal+rough.JPG Blog - White Cliffs Opal Fields - Make it stand out A small parcel of White Cliffs light opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1fed9853-1b27-43ce-b866-27f7fe150722/+White+Cliffs057.jpg Blog - White Cliffs Opal Fields - Make it stand out A group of cut and polished white cliffs opal, Courtesy Rudy Webber. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/7e21254c-a247-4019-a8dc-90ca04b576cb/IMG_0137_edited.jpg Blog - White Cliffs Opal Fields - Make it stand out An Opal Pineapple from White Cliffs https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6565626f-f500-445c-b889-4d274e4f5efb/+White+Cliffs055.jpg Blog - White Cliffs Opal Fields - Make it stand out A newspaper clipping from 1976 regarding the discovery of an opalised plesiosaur at White Cliffs NSW https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d9ddfe72-31ae-4850-b601-a914e143a1d6/White+Cliffs-7311_York+Hoist+and+windlass.jpg Blog - White Cliffs Opal Fields - Make it stand out A York Hoist and Windlass at White Cliffs https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9549bd6a-7d44-43cb-a1b5-8eae3a0685ff/White+Cliffs-7304_Self+Unloder.jpg Blog - White Cliffs Opal Fields - Make it stand out A self unloading hoist at White Cliffs. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/02119493-52f3-4650-a242-d2a07b0df1d4/+White+Cliffs047.jpg Blog - White Cliffs Opal Fields - Make it stand out A “blower” in operation at White Cliffs. https://www.opal.academy/home/Neville Curtis monthly 0.5 2023-11-16 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/16ed0f30-c053-4636-8b82-a35669253771/Neville+Curtis+-+Mug+shot+NJC_edited.jpg Blog - Neville Curtis - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/98f42e90-20cc-471a-829f-76e1ec227210/3.png Blog - Neville Curtis - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f626c667-60d2-4e60-844a-ae2cb8a3d75d/Opal+Interest.png Blog - Neville Curtis - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/90c04d42-f2b2-4eac-8115-13b6128c07a9/2.png Blog - Neville Curtis - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/2a809ce1-3433-411c-b50a-e1eb7c216edb/1.png Blog - Neville Curtis - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2019/6/27/lightning-ridge-opal-fields-ary6x monthly 0.5 2025-04-01 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677392183-S5BV9HRD6FZCR880SKWU/3MileOpenCut.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677420931-RXC24R6O7MVHB090RR7L/Blower.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677476902-0F1I2KXVWX1Y9BZZQW8T/Digger1.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677512603-VSKU2LW87DYORNAT4UMR/FieldSign.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677526747-CUKBKYAR631GP4QCKWBD/FrankUG5.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677544206-K7UPNJZD06LFAKJC4XVG/LRUG1.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677547771-OKPJOZ2G3GWJ0K6QE9BW/New3foothole.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677575561-BBT2B1ZT0RFILK6OXEBN/Output.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677585261-0ZV5A4KCHBVI16UJ3QZA/P6030840.JPG Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677587268-RWTNGSEJO011PV75C6C0/PneuHammer.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677600062-4VPOVNPL2XOGCRJE1YAO/SeamOpal.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677615027-7IDCEFN7R62IDVOX8PXI/TheBallroom.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677630014-2TP3D2DHMBXHE3TFGXSL/UGCarters1.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677638697-QS70CMUKFEROZ2Y74Z16/UGCarters6.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677650595-55RI8GY4U7MEHV6D7CXC/UGCarters8.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561677666619-IA9HH1EI9TY9CRU1C643/untitled1.jpg Blog - Lightning Ridge Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/fe1e75ea-51ef-4e67-b175-4c5e71a52c1c/history020.jpg Blog - Lightning Ridge Opal Fields - Make it stand out Cover of biographical discussion of Katie Parker. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ee3edf4e-a53c-4c86-802d-7212842469c4/history021.jpg Blog - Lightning Ridge Opal Fields - Make it stand out The cover of the most up-to-date history of Lightning Ridge. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f0ed1f86-2c6c-4938-b06a-18c280c87e64/BronzeStatue-Nettleton.JPG Blog - Lightning Ridge Opal Fields - Make it stand out A bronze statue of Charlie Nettleton outside the Lightning Ridge Historical Society. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/35b0b930-93d8-4ab2-8815-914127e6f6a5/IMG_0184.JPG Blog - Lightning Ridge Opal Fields - Make it stand out Nettleton’s First Shaft monument at the Six Mile field Lightning ridge. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5188f9cb-e610-4f0f-851b-0d75e45fd842/IMG_0192.JPG Blog - Lightning Ridge Opal Fields - Make it stand out A close up of the Monument plaque. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/75d69d52-a1a8-4966-af2a-c1b7b772ab96/Leaning+Tree001.jpg Blog - Lightning Ridge Opal Fields - Make it stand out An old historical photograph from the Sherman Archives of the opal filed named “The leaning tree”, and example of how opal fields have been named. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/3cb1aff1-4f03-458e-90cd-362e68413879/PMarks2-3.JPG Blog - Lightning Ridge Opal Fields - Make it stand out A historical photo provided to the Opal Academy by Cameron Marks of early days in Lightning Ridge. An aboriginal camp Circa 1906. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6d361c18-81d9-4511-a92c-2633cd281e62/ChristmasTree.jpg Blog - Lightning Ridge Opal Fields - Make it stand out A photograph of what was named the “Christmas Tree” pointing to various fields in the Coocoran opal fields Lightning Ridge https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/c14a46b2-8e9f-4056-accf-9f4c12428831/Opal+Australia+Map002.jpg Blog - Lightning Ridge Opal Fields - Make it stand out A edited portion of the Geological map 1:250,000 (Angeldool 2011 2nd edition) NSW Geological Survey. Area covers the Lightning Ridge town and outer lying fields,. Green areas are the Cretaceous Griman Creek formation (Krg) that represents the rocks in which precious opal is found. The light orange areas represent the Tertiary age gravels overlying the Krg. Lightning Ridge Town is in the area top right of the map. The shape of the “Ridge” can be related to the google earth map above. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/29227af4-c4ef-46f7-bf03-042fc2a451eb/Geology023.jpg Blog - Lightning Ridge Opal Fields - Make it stand out An earlier edited portion of Geological map 1:250,000 Angeldool sheet 1968 1st edition, which outlines the Rolling Downs group (in Green). The Rolling downs group contains the Griman Creek Formation , mentioned in the map on the left. The area here shows the shape of the Lightning Ridge area (middle right). The Castlereagh highway can be seen running from the lower right diagonally to the top left. This aspect gives an enlarged area that may be considered as “The Ridge”. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6853156f-0e9b-40da-831a-70fe388e2533/Lunatic+Hill-Profile-1.JPG Blog - Lightning Ridge Opal Fields - Make it stand out The Lightning Ridge weathered profile at Lunatic Hill. The photo shows the Lightning Ridge group (Whiting and Relph, 1961). The Upper Griman Creek formation. top unit is the Coocoran Claystone member, overlying the Wallangulla Sandstone Member (middle), the lower part of the photograph shows a lens of the Finch Clay Facies. Note that the mining has occurred at the junction “opal level” of the Wallangulla Sandstone Member and the Finch Clay Facies. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/8031abe9-52ab-476e-9dfa-252e9d0e08c5/nobby.png Blog - Lightning Ridge Opal Fields - Make it stand out Lightning Ridge opal nobbies. A collection of dark (grey) and black opal potch nobbies. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/168c776b-8863-453b-9e8a-4f9d82c17127/HoneyPotch+nobbies.jpg Blog - Lightning Ridge Opal Fields - Make it stand out Honey Potch nobbies. Some Lightning Ridge opal nobbies have a yellowish tinge to a more translucent body, these are commonly called “honey potch. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/db8227fd-c4ab-4746-a71d-05dce155e3dc/Pair+Chinamans+Hat+Nobbies-2.JPG Blog - Lightning Ridge Opal Fields - Make it stand out Chinaman’s hat nobbies are nobbies with striations and a pointed top that look like a :Chinama,s Hat”. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6480520a-6325-4d0e-9d76-5c24b6775f0f/seam.jpg Blog - Lightning Ridge Opal Fields - Make it stand out Samples of seam opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9bde3122-ce0f-43f3-bf40-4df4ebd5b84e/Tailed+production+of+nobbie.JPG Blog - Lightning Ridge Opal Fields - Make it stand out Opal nobbies https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4b5f156b-254b-42b8-ab1c-2e668ac70d34/Crimson+Rosella.jpg Blog - Lightning Ridge Opal Fields - Make it stand out The Crimson Rosella a named precious black opal mined in Lightning Ridge. The opal is a long oval cabochon showing a extremely bright red predominant multi-coloured play of colour with a full faced random pattern which is very slightly inconsistent in the arrangement of the colour grains (patches). A superb gemstone. Photo courtesy of Cody Opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6cea24f4-47dd-4896-ab16-3c2e7f39ec2b/RebelB-5.1.JPG Blog - Lightning Ridge Opal Fields - Make it stand out An exceptional and vibrant pear shaped cabochon precious black opal sowing a green multi-coloured consistent play-of-colour Specimen courtesy of Colleague Rebel Black, and Photo by A. Smallwood https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d798822b-78a4-48dc-84a3-1eb45b260e48/Step+cut+dark+green+3b.jpg Blog - Lightning Ridge Opal Fields - Make it stand out A free form opal step carving showing a vibrant green on blue play-of-colour and incorporating a carved section to the black potch level of this seam opal. Note the round black ‘hole” carved to remove a deep sand spot, however adding to the overall presentation of the carving. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/40760e2a-a03e-40b5-856d-4ffb0bc13849/Dragon+2+editedb.jpg Blog - Lightning Ridge Opal Fields - Make it stand out An exceptional black opal abstract opal carving showing a vibrant green on blue random pattern designed and cut so as to preserve precious opal that otherwise may have been lost if cut into standard “oval” cabochon opal pieces. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/84b5a27d-578e-4159-82b1-c63157d83811/Calweld2.jpg Blog - Lightning Ridge Opal Fields - Make it stand out Calweld drilling rig for drilling a three foot hole for access to the opal level. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9eacd795-a9b5-4bb6-b37b-d81c97d644c5/9+inch+Auger.jpg Blog - Lightning Ridge Opal Fields - Make it stand out Using a 9 inch prospecting Auger to drill an opal prospecting hole at claim in he Coocoran fields at Lightning Ridge. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/3f17f5d7-3d20-4828-97ba-241f00d81301/UGDigger2.jpg Blog - Lightning Ridge Opal Fields - Make it stand out Using a modern underground digger to move the opal dirt. Note the pipe on the lower left where the dirt is funnelled in to a pipe to be uploaded by a ‘blower” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0a106c7a-41ea-4864-b2c3-1adc1cc1eccf/IMG_0131.JPG Blog - Lightning Ridge Opal Fields - Make it stand out Loading the opal dirt which has been vacuumed up from the mine below and loaded onto a truck for transportation to the puddling tank for processing. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1f0d2577-cae0-48b1-8c2d-d16b1bbdc7c8/Agitator1.jpg Blog - Lightning Ridge Opal Fields - Make it stand out The opal dirt is loaded via conveyor to be washed in an ‘agitator’ at the puddling tank . Washing the opal dirt can take several hours or longer in order to breakdown the dirt and release the opal for further examination. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/42332a65-274f-434a-97cd-2304ec64b51b/Tailing+out+at+Ridge.JPG Blog - Lightning Ridge Opal Fields - Make it stand out After the opal dirt, the operation of the agitator (colloquially ‘Agie’) is reversed and the process of “tailing out” is made. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/39738fc8-5903-41e5-8965-370c5c02a53e/A+camp+at+Lightning+ridge.JPG Blog - Lightning Ridge Opal Fields - Make it stand out A ‘Camp’ at Lightning ridge https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/76b62b84-44f0-483d-92d9-09555a30d2ad/Dwelling+at+lightning+Ridge.JPG Blog - Lightning Ridge Opal Fields - Make it stand out An older style dwelling at Lightning Ridge. This is typical of the ‘older’ historical days in Lightning Ridge. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5159959a-b91a-4e6f-b31d-d3e5ceea4f86/AOC.jpg Blog - Lightning Ridge Opal Fields - Make it stand out The Logo of the Australian Opal Centre https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/3932990b-4c0e-4439-b11b-03659eb2704d/Bore+Baths-+Lightning+Ridge_edited.jpg Blog - Lightning Ridge Opal Fields - Make it stand out The Lightning Ridge bore baths in the evening, Hot therapeutic natural water from the Great Artesian Basin, a must visit for “The Ridge”. Photo courtesy of the Lightning Ridge Tourism Association. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d08c2f56-cf17-4f54-824e-3a4e5a2eb561/Lightning+Ridge+Sign.JPG Blog - Lightning Ridge Opal Fields - Make it stand out The welcome sign driving into “The Ridge”. Some people will always say that the population of Lightning Ridge may be transient, perhaps we don’t know how many people call the town home? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/06408720-2836-44c8-9863-208012daee89/LRSign2.jpg Blog - Lightning Ridge Opal Fields - Make it stand out Lightning Ridge is a mining town as well as a tourism haven. When visiting please always include safety whilst visiting, there are some dangers please tread carefully. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0625a0ac-f183-4821-bdfc-6fbfceb402f6/MineralClaim5.jpg Blog - Lightning Ridge Opal Fields - Make it stand out A mineral claim, or opal mining lease is private property. More information for the tourist is that where there are mining leases, the ground or property is private land to the claim holder. If visiting please respect these claims. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5d6e530a-ccbf-4847-b043-452c8a177473/IMG_0188.JPG Blog - Lightning Ridge Opal Fields - Make it stand out Touring the opal fields is easy, just follow the “Car door” opal trails! https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/46e1ac11-63a1-4081-ae97-e193314a2c1d/IMG_0183.JPG Blog - Lightning Ridge Opal Fields - Make it stand out Just follow the “car parts” A view here from “Six Mile” field looking west towards the outer lying opal fields of Coocoran. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/df06722d-b44b-4a95-9fe4-c5fea6fffdc1/Sunset+Lightning+Ridge+-+4.JPG Blog - Lightning Ridge Opal Fields - Make it stand out Sunset in the opal fields from the “First Shaft” Mine shaft outlook. https://www.opal.academy/home/2020/8/17/template-nomenclature-e2564-5pw5z-ysde2-hywff-nct79 monthly 0.5 2023-08-10 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/c7c62b62-ba85-41cd-b6a2-a2768995e59e/BlackOpal+Nobby-DTEarth.jpg Blog - What is Black Opal? - Make it stand out A black opal nobby from Lightning Ridge showing black potch along the bottom and right hand side and vibrant green on blue precious black opal above. The white material is the bleached sandstone country rock found in Lightning Ridge. This specimen courtesy of colleagues Vicki Bokros and Down to Earth Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/a2b4d2cf-0a32-4078-a7f3-f6f3d5e9aea2/Black+nobbycolour+bar+3.JPG Blog - What is Black Opal? - Make it stand out A black opal “nobby” showing a violet blue colour bar of precious opal sandwiched between two separate layers of very dark grey potch opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4930458e-aa31-45eb-99a2-d62a876c55fe/BlackOpal+nobby+1.jpg Blog - What is Black Opal? - Make it stand out An example of a black opal potch nobby from Lightning Ridge NSW, Australia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/50232c0f-c388-4669-b045-27d31111322a/Nice+Blue+green.jpg Blog - What is Black Opal? - Make it stand out A vibrant green on blue precious black opal from Lightning Ridge. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/65597b87-bbd3-40f4-a642-1e240a333216/Seam-ColourBar3-DTE.JPG Blog - What is Black Opal? - Make it stand out Precious black seam opal colour bars between layers of dark (grey) opal potch. Photo courtesy Down to Earth Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/a5001d0f-bc07-4303-9b73-b57ed49862a0/Red+hole+carving2b.jpg Blog - What is Black Opal? - Make it stand out An exceptional free form opal carving from Lightning Ridge Seam opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/99643eaa-d671-41dd-aaff-8a560020467f/BlackOpal5-2.2.jpg Blog - What is Black Opal? - Make it stand out A bright red on black .with a hint of green Black Crystal opal with a random and slightly directional pattern. Courtesy Rudy Weber photographic collection https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0cfacc90-e5e4-4bcb-8003-d3c9f82874db/BlackCrystal2-2.1.jpg Blog - What is Black Opal? - Make it stand out A bright orange green black crystal opal showing a random pattern Courtesy Rudy Weber photographic collection https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/8c4f52a8-8b75-4940-b5f1-5b69be479fc8/BlackCrystal3-2.1.jpg Blog - What is Black Opal? - Make it stand out A bright green/yellow black (borderline dark crystal opal showing broad pattern. Courtesy Rudy Weber photographic collection https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/604a59cd-69d6-4aec-9325-9f9544b0bd65/Black+Boulder+Opal.JPG Blog - What is Black Opal? - Make it stand out A vibrant red multicoloured precious black boulder opal. Specimen courtesy Sherman Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4bb913ca-005c-4bba-a7a5-b34a018445fa/Black+Boulder+opal+Profile.JPG Blog - What is Black Opal? - Make it stand out A profile view of the Precious black boulder opal shown left, Note the black haematite stained line between the POC and the ironstone/sandstone base. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/529a13a7-e133-4984-a6bc-1224faa975c7/Black+-+violet+blue+green+-+OPal-Sherman_031.JPG Blog - What is Black Opal? - Make it stand out precious black boulder opal showing a very bright violet (purple) blue POC in a small pattern and with a hint of green! Opal Courtesy Sherman Opals, Photo by A. Smallwood https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6bb03b52-b51f-4a9f-a590-93e4dd0816f5/PArcel+BlackBoulder7-TrueBlue.JPG Blog - What is Black Opal? - Make it stand out A Parcel of four exquisite bright multi-coloured precious black boulder opals. opals courtesy True Blue Opals, Photo A. Smallwood https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/08614f3c-6104-4909-9d13-9a6c6bee1702/Koninderie_32.JPG Blog - What is Black Opal? - Make it stand out A large opal specimen known as the “Koninderie” exhibiting natural precious black matrix opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/435a23c7-0d8b-4ec1-95c4-47e2a0fcb354/Andamooka+Black+-+Freeform.jpg Blog - What is Black Opal? - Make it stand out A free-form natural precious black opal from Andamooka SA, the specimen is courtesy of Ivan Forest. Photo by A. Smallwood https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6bed0c81-1130-46ac-9ed5-ea6d9838b76d/Blue+Green+Mintabie+Black1-.JPG Blog - What is Black Opal? - Make it stand out A vibrant green/blue precious Mintabie black opal showing a random pattern and free form shape. Specimen courtesy Max Novelli, Mintabie Opals Australia. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9b96810f-2b20-4582-ab82-05c16de43c5d/Mintabie+SP+Face2.JPG Blog - What is Black Opal? - Make it stand out A red multi-coloured precious black borderline “dark” free form pear shaped cabochon Mintabie opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/adb773e5-9cb2-44c3-92d1-d6d5b26d1643/Ethio-nobby-2-1-1.JPG Blog - What is Black Opal? - Make it stand out A black precious opal specimen from Ethiopia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/26a4966e-344a-4a63-a423-eea73f92ea95/Ethio-nobby-1-2.JPG Blog - What is Black Opal? - Make it stand out An Ethiopian black hydrophane opal specimen, the stone on the right has been cut from this specimen https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/779a5a62-2012-4d1c-9e14-732697c8e717/Ethio-Black-Justin-1-2.JPG Blog - What is Black Opal? - Make it stand out A precious black hydrophane opal cut from the specimen on the left https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/c99b6334-4a31-4851-b65b-cdc1ff619bb3/reflected-light.jpg Blog - What is Black Opal? - Make it stand out A black crystal opal from Slovakia in reflected light showing a subdued blue violet Play-of-Colour (POC) Courtesy Peter Semrad https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4435e118-d868-4b71-852d-2409c689cdce/transmitted-light.jpg Blog - What is Black Opal? - Make it stand out The Slovakian black opal shown to the left and photographed in transmitted light and showing the nature of the black body colour or body tone. Courtesy Peter Semrad https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0bd7715f-7dcd-4ab1-ad99-5e41192f2e21/Slovak-Blackopal-Semrad.jpg Blog - What is Black Opal? - Make it stand out A precious black crystal opal showing a bright red/green play-of-colour, and with a slightly dark brownish body colour or body Tone Courtesy Peter Semrad https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1ae5c34e-a930-4b5b-add5-82877b5001f7/Honduran+Boulder+opal+3.JPG Blog - What is Black Opal? - Make it stand out A free form precious black boulder opal from Honduras. The opal is incorporated on a basalt rock base. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/660a9f3a-6d72-4ed7-81c1-0a7eab4cb6df/Honduran+Matrix+-+1.JPG Blog - What is Black Opal? - Make it stand out Precious black matrix opal from Honduras showing pin-point colour in a basalt matrix. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d05a16d0-b5e6-466c-b817-deedfddf9c53/Honduran+Matrix2.jpg Blog - What is Black Opal? - Make it stand out A view of the precious black matrix opal on the left when examined under the microscope. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/289f7a73-d0a2-4fb3-90d0-4d1a0d248b59/Indo+Opal+-+Java+Black.jpg Blog - What is Black Opal? - Make it stand out Precious black (very dark brown) Indonesian opal cabochons https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/bdfcc6cc-f59f-4229-b1f2-142845613ab7/IndoOpal1.JPG Blog - What is Black Opal? - Make it stand out A freeform piece of black (very dark brown) precious crystal opal from Indonesia. This opal has been referred to as “Tea opal” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/fc91fc6a-efab-43f8-829b-42b225a14d8a/RockChart2+compress.jpg Blog - What is Black Opal? - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/69004063-63ba-48a6-8405-c5b203d30d27/RockChart2.jpg Blog - What is Black Opal? - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/11c51bea-1dca-4553-b5ea-8405fc4fdde0/Nomenclature-Rock+Chart.jpg Blog - What is Black Opal? - Make it stand out The cover of the Rock Colour Chart https://www.opal.academy/home/2020/8/17/template-nomenclature-e2564-5pw5z-x993j-ga7a5-3tr5p-cl5mt-2cbzx-jexwz-lhf8s monthly 0.5 2023-02-14 https://www.opal.academy/home/2020/8/17/template-nomenclature-e2564-5pw5z-x993j-ga7a5-3tr5p-cl5mt-2cbzx-x5g86 monthly 0.5 2023-02-13 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0fae283c-9fcf-48d2-9630-29b719659812/MArs-Planet+Photo.jpg Blog - Opal and Mars? - Make it stand out Photos provided courtesy of the NASA website https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d75e002a-e117-4fc1-8316-73c3bfe70be9/Mars+Rover-NASA+-1.jpg Blog - Opal and Mars? - Make it stand out Photo provided by the NASA website https://www.opal.academy/home/2022/5/12/the-story-of-hydrophane-opal monthly 0.5 2023-10-05 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1652334579378-58OUP2XWADSS87XWQO8G/BldPtCoat66.jpg Blog - The Story of Hydrophane Opal - Make it stand out An electron micrograph of Play-of-colour opal and sphere structure 80,000x https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1652334690298-Q6JVT5UNYJTKXRWC44JA/EthVol57.jpg Blog - The Story of Hydrophane Opal - Make it stand out A electron micrograph of an Hydrophane opal which does not show Play-of-colour 80,000x https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626234444852-7CR255MKFXIHIG9UXASN/Hydrophane+0m.JPG Blog - The Story of Hydrophane Opal - Make it stand out Hydrophane Opal before immersion in water. Note that the opal appears predominantly opaque. There is a hint of Play-of-Colour at the bottom of the photo. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626234518284-D3QR0LX3X9XQVVOPSURZ/Hydrophane+10m.JPG Blog - The Story of Hydrophane Opal - Make it stand out Hydrophane Opal after immersion in water for approximately 10 minutes. Typically with immersion in water the initial onset of absorption of the water appears to be slow. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626235089065-P2XCQQ9R05GNH94MBGRN/Hydrophane+15m.JPG Blog - The Story of Hydrophane Opal - Make it stand out Hydrophane opal after immersion in water for approximately 15 minutes. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626235178145-5QYEC9AT9CORCM0DX9B3/Hydrophane+20m.JPG Blog - The Story of Hydrophane Opal - Make it stand out Hydrophane opal after immersion in water for approximately 20 minutes https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626235273559-EGT91DMTCFO32E4JADLR/Hydrophane+25m.JPG Blog - The Story of Hydrophane Opal - Make it stand out Hydrophane opal after immersion in water for approximately 25 minutes https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626235334736-Y957FFCUNIDOFD3J9NGL/Hydrophane+30m.JPG Blog - The Story of Hydrophane Opal - Make it stand out Hydrophane opal after immersion in water for approximately 30 minutes. The absorption of the water is now essentially complete, The slight misty appearance is due to the surface of the opal starting to dry. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648183474450-47H49IAN63JR0YE2Q1H0/Hydrophane+test+-+1.jpg Blog - The Story of Hydrophane Opal - Make it stand out A record of the change of weight for a hydrophane opal specimen, small, as the sample absorbs water. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648183501708-GI06F3E7HH1WWMIHD675/Hydrophane+test+-+2.jpg Blog - The Story of Hydrophane Opal - Make it stand out A record of the change of weight for a hydrophane opal specimen, larger, as the sample absorbs water. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648184916226-672CO29DA7WRYLMQWJF0/Hydrophane+test+-+4.jpg Blog - The Story of Hydrophane Opal - Make it stand out A record of the change in weight of a hydrophane opal specimen as the sample dries out under ambient room conditions of temperature and pressure. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648183533845-UJON1YIN2FOQPOOCVWMK/Hydrophane+test+-+3.jpg Blog - The Story of Hydrophane Opal - Make it stand out A record of the change in weight of a hydrophane opal specimen as the sample dries out under ambient room conditions of temperature and pressure. The “kink” in this graph is likely due to temperature change in the room where the experiment was conducted! https://www.opal.academy/home/2020/8/17/early-days-in-coober-pedy monthly 0.5 2022-05-12 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645055396204-QVB3JIR4VO5DRQB4KS4L/Sherman-14Feb22N-CP044.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Ernie Sherman communicating with some local aboriginals at Coober Pedy, date Unknown, Thought to be Circa 1930’s https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645055611901-S5B0D6KT2ZM6IF3CE7NO/Sherman-14Feb22P007.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Ernie Sherman with colleagues outside a dugout in Coober Pedy (Date and people unknown) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645055187730-YPNJGMXBOG23PD9BD04D/Sherman-14Feb22N-CP043.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out An early photo of the Commonwealth Bank and Post Office dugout Coober Pedy, (Date unknown, People Unknown, although it is possible the gentleman in the hat and suit is Ernie Sherman. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645055875409-7S2B3CTKSDB510880VCA/Sherman-14Feb22002.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Ernie Sherman with colleagues and some mechanical devices used at the time, more information needed for this photo! https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645055795350-FXRO79J6QI4DB5OI03X6/Sherman-14Feb22N023.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Ernie Sherman “Snipping Opal”, Coober Pedy” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645056659335-KQU74Y37CK03QTB9RN7M/Sherman-14Feb22N030.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Miners examining opal in the field, old time windlass in the background https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645056736422-254B746CBV67ZLJ6MI5D/Sherman-14Feb22N013.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Opal miners on the fields, Coober Pedy https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645056817595-L7G0PR26LX1BTD76PVWA/Sherman-14Feb22N014.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Opal Miner using the windlass, Coober Pedy. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645056987620-YSFD7AL1IK01GG5IMDTY/Sherman-14Feb22N022.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Charlie Bryant an opal buyer examining a parcel of opal rough on the fields, Coober Pedy https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645057101458-1UTE8IA0BS9HDIUGOZY2/Sherman-14Feb22N031.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out A group of Aboriginals on the fields at Coober Pedy, Gentleman in the background unknown at this time. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645057680512-LJZSQFTF8EVRHA1ND86S/Sherman-14Feb22001.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Opal Miner outside a dugout, with a bush annex. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645058618751-K3J3I09RO0AGHV8FX7R9/Sherman-14Feb22N029.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Opal miner outside a bush lean to. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645057472734-DBZDTEUOLS9EBM0XJJZC/Sherman-14Feb22N015.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Ernie Sherman bagging opal in preparation for transport, picture outside his dugout in Coober Pedy, circa early 1930’s https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645071265663-K1JM9U9GC1PFQPYG1PFH/Sherman-17Feb22N-CP081.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Ernie Sherman (left) with opal miners in “ Snake Gully? 12 miles from Coober Pedy https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645058491043-7KXXCXC6KPB0FWN20U6A/Sherman-14Feb22N-CP040.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Accommodation at Coober Pedy, (People unknown) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645058556687-O1CXBMN7B8IVP83NVTWT/Sherman-14Feb22N-CP038.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Opal Miners outside the dugout (people unknown) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645057567898-32JLMSHQT4T4NHV6EBEW/Sherman-14Feb22N-CP037.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Unknown Opal miner outside a dugout. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645057793458-HU106BCBR1SSCXTQQSQ5/Sherman-14Feb22N-CP046.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Opal Miners outside a dugout, people unknown at this time. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645058011748-BHOX11U1L2MCPX5USAZJ/Sherman-14Feb22N020.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Travelling to and supplying the opal fields in South Australia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645058143687-I42S2CR4NQKLQIYET69X/Sherman-14Feb22P008.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Ernie Sherman and others (names unknown) with a Tiger Moth for transport to Coober Pedy Opal fields (Date Unknown) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645058267845-ITB0KAOLFTT7TYELPXTA/Sherman-14Feb22N026.jpg Blog - Sherman Archives - Early days in Coober Pedy ~ 1930's - Make it stand out Other forms of travel in the Opal fields, Coober Pedy. https://www.opal.academy/home/2020/8/17/what-is-boulder-opal monthly 0.5 2022-04-28 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648009279199-IYKXXWVZE2G44JSQE3KP/Boulder+opal+on+saw.JPG Blog - What is Boulder Opal? - Make it stand out A boulder of opal on a saw bench in Winton, Queensland Australia, courtesy of https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648009316718-1LMVY527W9I4OGN4337G/Boulder+opal.JPG Blog - What is Boulder Opal? - Make it stand out A real boulder of opal! A closer view of the boulder opal seen to the left. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648012665209-8IG23PIJAP3MKVSFV9IR/IMG_8409.JPG Blog - What is Boulder Opal? - Make it stand out A photograph showing an ironstone boulder opal in the surrounding country rock. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648012727697-HQJLT6GO5WZRH44WCJQ7/IMG_8396.JPG Blog - What is Boulder Opal? - Make it stand out A view of an opal boulder in the wall, or face of an opal mine. People give the scale. Not all Ironstone boulders or concretions are this large. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648101261892-FHKBINB980AM8XP31IOL/Veins+of+opal+in+ironstone+-+Boulder+opal.JPG Blog - What is Boulder Opal? - Make it stand out A portion of an Ironstone boulder showing the veins of precious opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648101288820-TXQISROLZVOKMEKRL7JO/Veins+of+opal+in+ironstone+-+Boulder+opal-2.JPG Blog - What is Boulder Opal? - Make it stand out A close up photo of a section or ironstone showing the nature of the veinlets of precious opal. This specimen will cut into some very nice gemstones. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648010461709-RSXGH08B200S2FSRHJ0I/IMG_0265.JPG Blog - What is Boulder Opal? - Make it stand out A large ironstone concretion of precious boulder matrix. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648009844350-7ZKADBBVORP99VYB84HW/IMG_9262.JPG Blog - What is Boulder Opal? - Make it stand out There are almost an infinite number of designs, patterns or shapes and sizes of precious boulder matrix opal, https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648012498786-XKHN6QRIEEEJB53WVOGD/YowahNutSplit.jpg Blog - What is Boulder Opal? - Make it stand out A “Yowah” nut sliced open showing a red, grading to brown ironstone and with a crystal opal centre. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648012533181-DA86JXNLB0R6M4HUQV4G/A+yowah+nut.JPG Blog - What is Boulder Opal? - Make it stand out A different “Yowah” nut showing precious boulder matrix opal around a central kernel of precious opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648014757669-2QZ6JOZH98SILVDAL1NN/OPal-Sherman_090.JPG Blog - What is Boulder Opal? - Make it stand out the face of a vibrant full faced multicoloured precious black boulder opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648014806552-X6JX3161WS4YCMZ6ZNWG/OPal-Sherman_098-+Boulder+Black.jpg Blog - What is Boulder Opal? - Make it stand out A side on photo of the gemstone on the left showing the how the opal is naturally combined with the ironstone https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648015707025-102GVBCIZ4GW9P6U15QP/Boulder+opal+-+back+-1.JPG Blog - What is Boulder Opal? - Make it stand out The back of the same gem, showing the ironstone. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648014917267-OJILE4HQDST2YC3J3VVF/OPal-Sherman_053.JPG Blog - What is Boulder Opal? - Make it stand out A free form shape light boulder opal showing a small patterned POC, on a full faced gemstone, also notice the slightly undulating surface of this gemstone. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648014963890-BF6HTJECXBQMQG9WUXZ2/OPal-Sherman_052.JPG Blog - What is Boulder Opal? - Make it stand out The back of the same gemstone shown to the left, notice how the yellowish brown back of the stone is a little granular sandstone nature, this may be referred to as sandstone opal, especially in older literature. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648095866835-FF6F0D0UM79YL5SYVG70/Boulder+opal+Tony-2.JPG Blog - What is Boulder Opal? - Make it stand out A vibrant multicoloured boulder opal, notice there are some small inclusions of ironstone in the face of this gemstone. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648095913400-70EXH0I2TVHKR97LQH3U/Boulder+opa+sandstone+back+-+Tony3.JPG Blog - What is Boulder Opal? - Make it stand out The back of the gemstone on the left showing the nature of a darker ironstone/sandstone. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648706203554-IJRTXGCLX5CJ5A6858F4/Boulder+Ironstone+opal+POC-2.JPG Blog - What is Boulder Opal? - Make it stand out Three free-form precious boulder opals showing a variety of moderately bright Play-of-colour (POC). The stones have a fairly flat and slightly undulating surface. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648706238361-61XI8Y4F7TY6OOSHEN39/Boulder+Ironstone+Opal+Back-2.JPG Blog - What is Boulder Opal? - Make it stand out The back of the three gemstones show on the left showing a much tighter or finer grained slightly yellowish brown ironstone material with parts of the concentric or banded nature of the ironstone concretions in which they have formed https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648016566888-JT2L8YJR1SLSWYOMN9AI/Free-form+boulder+opal+1.JPG Blog - What is Boulder Opal? - Make it stand out Because of the nature of formation of precious boulder opal, these gemstones often allow a more “artistic” presentation for the gem cutter. The nature of these gemstones allow a cutter to have a ore nuanced design factor for the gemstones. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648016616863-9P437FWTK0Z7R8A5AW9M/Free-form+boulder+opal+2.JPG Blog - What is Boulder Opal? - Make it stand out Free form shapes and the nature for the thin precious opal on the ironstone often provide for interesting shapes and a vibrant POC as shown in this full faced precious black boulder opal gem. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648016663480-09A002635EU996XMR2IF/Boulder+opal+-+ironstone+in+the+face+2.JPG Blog - What is Boulder Opal? - Make it stand out Another example of a free form shaped green on blue precious boulder opal. Note that the highlights seen when photographing this gemstone shows the undulating nature of this stone. The gem also shows a little more ironstone inclusions in the face. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648016692284-Q9JAWZYI0L7PVMST9O0K/Boulder+opa+-+ironstone+in+the+face.JPG Blog - What is Boulder Opal? - Make it stand out Another free form green on blue precious boulder opal. The surface here is slightly more flowing, and the stone has been cut with perhaps 50% ironstone in the face. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648705344742-0VWROZ3L1YE3ZXJE72SQ/Boulder+Opal+Split+2.JPG Blog - What is Boulder Opal? - Make it stand out A piece of boulder opal with a thin ‘seam’ of opal with POC as seen before splitting open. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648705389611-TMIXFIYYIUFRMOY32I38/Boulder+Split+-+3.JPG Blog - What is Boulder Opal? - Make it stand out The open pair of a boulder “split” opened up from the stone on the left. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648102816191-ZYNLJ2JAEPB5VJQD5RNT/Painted+Lady+1.jpg Blog - What is Boulder Opal? - Make it stand out A rough specimen of Andamooka boulder opal showing a light opal with green POC on the specimen https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648102847805-0TWSVUOCTTL3AOXKZEHT/Painted+Lady+2.jpg Blog - What is Boulder Opal? - Make it stand out Another example of Andamooka boulder opal or “painted Lady. The base material is a flattened boulder of the Arcoona Quartzite https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648101978088-UW2DFOYO9IYQKVDC9JTQ/Mexican+Boulder+Opal+2.jpg Blog - What is Boulder Opal? - Make it stand out A pair of oval cabochon cut Precious Mexican Rhyolite type boulder opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648102013837-BBFK2WC6C83YHX2S73HY/Mexican+Boulder+Opal1.jpg Blog - What is Boulder Opal? - Make it stand out A pair of Mexican red “fire” opal in a very light and close grained rhyolite, Note that the red “fire” opal does not show any Play-of-Colour. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648104763183-IEZ1XHN0S86CWK7P50FQ/Honduran+Boulder+opal+2.JPG Blog - What is Boulder Opal? - Make it stand out A sample of a “Black” or “Dark” precious Honduras basalt type “boulder opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648104797641-76GN8ITO2IAINEQZ68IE/Honduran+Boulder+opal+back+side+3.JPG Blog - What is Boulder Opal? - Make it stand out The back of the gemstone on the left showing the black close grained basalt rock. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1648104835057-5XHTVE5ZUG89K1B1C4V3/Honduras+Boulder+opal+-+elevation1.JPG Blog - What is Boulder Opal? - Make it stand out A side or elevation view of the gemstone to the left showing the opal combined to the basalt back. https://www.opal.academy/home/2020/8/17/early-days-in-andamooka monthly 0.5 2022-04-29 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645072107970-98U20RNI2GYP719ICU84/Sherman-17Feb22N-ANda071.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Ernie Sherman outside his dugout in Andamooka Possibly 1932 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645071964167-KAWQFM0KLWZMZ7WQS9RJ/Sherman-17Feb22N-ANda057.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Another example of a dugout in Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645074692160-5T2HFETUJKACEJ3MQU2D/Sherman-17Feb22N-ANda065.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Sherman’s House - Andamooka - Circa 1946 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645071889346-EIFC4TU6SZI9NP3LB6F7/Sherman-17Feb22N-ANda058.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Opal Camp - Andamooka Albertoni Brothers Opposite the Post Office. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645074046967-FT0YZEXWI5P7EIKLHTUV/ES-PostOffice-Andamooka-021.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Post Office Andamooka - Miners waiting for the Mail truck https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645074367773-GODBLWQ0M0AO08JOHXVJ/Sherman-17Feb22N-ANda054.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Miners Leaving Andamooka “on the mail truck - Home for Christmas vacation! https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645074508055-2EHWI54OE3G5BTFZA75Z/Sherman-17Feb22N-ANda063.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Bill Hallion Sharpening tools, Pick’s for Monday mornings work - in Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645073577435-L8DEM3YBGP3L7C7W6MWH/Sherman-17Feb22N-ANda061.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Comment - Note the fire wood often carted 20 miles to the camp - Early Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645073692326-1YDK8J2GJB1C35Z6K66S/Sherman-17Feb22N-ANda060.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Miners Camp - Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645072352200-6IZLER65TGZQO9QN73YV/Sherman-17Feb22N-ANda051.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645073424598-R9S69R0N1UKJ9DXUX0GN/Sherman-17Feb22N-ANda062.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Miners Camp - Early Andamooka, maybe Alan Treloar in the centre https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645073866687-XBDQ91JAZ0GQQQ6K59XD/Sherman-17Feb22N-ANda064.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Miners Camp - Early Andamooka - Note the rope and pillow (foreground) supposed to keep snakes away? whilst sleeping out on summer nights https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645072050015-6VTNG0AQDPFX0CH7D69I/Sherman-17Feb22N-ANda055.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Absalom’s camp Andamooka EGS comments - A married couples camp - “I’ve bought a considerable amount of opal off the wife (Joyce), dug out by herself!” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645075769109-HNDH8D7GVOFLXCJ69ND8/ES-Andamooka-+Berrington-022.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Personalities - Minnie Berrington, Author of “Stones of Fire”, seen here in Andamooka with brother Roger, more information to come in the literature section….Curators Note: we are working on presenting more information on Minnie Berrington in a future post on the Opal Academy………. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645076373979-QWY8LTLCKW15F21D1BG3/Sherman-17Feb22N-ANda069.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Andamooka - The Butcher https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645076439296-PFU8PZ4RN5W7G4DKP93W/Sherman-17Feb22N-ANda056.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Drilling for water near Andamooka https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645074922850-WZC7EQDGSVEKUVGPW75P/Sherman-17Feb22N-CP047.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Ernie Sherman Mining - Early Andamooka - ~1930’s https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645075020988-FLNSG9G8E9HRJA4U1Z70/Sherman-17Feb22N-CP049.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Hand digging a shaft for opal mining “Dave Smith German Gully Andamooka one of the lucky diggers”~ circa 1930 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645075331692-CNBD0OQCJJT0831PQIW5/Sherman-17Feb22N-ANda079.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out Miner in Andamooka using a petrol powered York Hoist on “Tea Tree Flat”, Note the drilling rig in the background, Date unknown. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1645075547514-R5ZP6GZM06V0YNGV9P16/Sherman-17Feb22N-ANda077.jpg Blog - Sherman archives - early days in Andamooka - Make it stand out ”Automatic tipper” on “the saddle’ Andamooka view looking towards the south-west, the co-op store in the centre left,. https://www.opal.academy/home/2020/8/17/what-is-matrix-opal monthly 0.5 2022-04-28 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646115107683-XRSVEK40XNFQ2VMTPUCD/Matrix+Nobbies-2.JPG Blog - What is matrix opal? - Make it stand out A group of Lightning Ridge opals, a seam opal on top, the matrix is on the top, left a “chinaman’s hat nobby with a matrix top, and the left a flat nobby with grey matrix on a colour bar of blue/violet POC. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646114932652-WD3FWLHN27P88QHMUVD4/MAtrix+Nobbies.JPG Blog - What is matrix opal? - Make it stand out A pair of Lightning Ridge Nobbies with “Matrix tops. The matrix is the grey material on the top of black potch opal. The white material is “sand” or sandstone left on the nobbies. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646179080982-W3AJJUU7ZF11PHOOVX7M/Andamooka-Treated+Matrix-4.JPG Blog - What is matrix opal? - Make it stand out A piece of rough Andamooka light matrix opal, untreated showing a subdued red pinpoint POC https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646179161904-73JW2ZRF6082NNKEXM37/Andamooka-Treated+Matrix-3.JPG Blog - What is matrix opal? - Make it stand out A piece of rough sawn Andamooka light matrix opal “rainbow opal or “concrete” untreated, showing a subdued orange-red POC https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1647579208684-RH98EHNVKIHIYLUL5T8D/Andamooka-natural+black+matrix-1.JPG Blog - What is matrix opal? - Make it stand out Natural (untreated) Andamooka black precious matrix opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1647579315872-7KEA9ITVGH7496JN6YTM/Andamooka+Natural+Honey+Matrix-2.JPG Blog - What is matrix opal? - Make it stand out Natural (untreated) Andamooka “Honey” precious matrix opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646178995435-JB0IWTPE5H852X2VTM8W/Andamooka-Treated+Matrix-1.JPG Blog - What is matrix opal? - Make it stand out A rough piece of treated Andamooka matrix opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646178960014-PZWU4CN1INUJ1ZFO2SLG/Andamooka-Treated+Matrix-2.JPG Blog - What is matrix opal? - Make it stand out The piece of rough Andamooka treated matrix (shown left), which has been sawn through to show the depth of the treatment is essentially only “skin” deep. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646185527231-4K41DZKY389SAA6S6DOX/Treated+Matrix+-+49.jpg Blog - What is matrix opal? - Make it stand out A cabochon cut treated Andamooka Matrix opal. Note the “black spots” look like “pepper” which is indicative of treatment. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646115960544-2V0J3WT2Q8MI2GTXCRVH/Treated+Andamooka+concrete.jpg Blog - What is matrix opal? - Make it stand out A pair of large treated Andamooka “Rainbow” matrix opal specimens. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646186388456-BE42URZMXWD3PZY24O47/DSC_1216.JPG Blog - What is matrix opal? - Make it stand out A parcel of rough ironstone precious boulder matrix pieces https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646115781920-S1OW21YCBM2MQ5LWRMRY/Boulder+Matrix-5.JPG Blog - What is matrix opal? - Make it stand out A light coloured ironstone boulder matrix opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646186857002-0FYC2OBUUWGBENXX29I3/IMG_8287.JPG Blog - What is matrix opal? - Make it stand out A slab cut rough piece of Boulder sandstone matrix opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646186927971-6M92WHPR0BJKCCUXOWLB/Fairy-Beads-Treated+Boulder3.JPG Blog - What is matrix opal? - Make it stand out A portion of a strand of “Fairy stone” black treated precious boulder sandstone matrix opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646187516871-P42JIKPCNW7RGJKJF23A/Honduran+Matrix+-+1.JPG Blog - What is matrix opal? - Make it stand out A rough piece of natural (untreated) Honduran black basalt matrix opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646187596020-33I0MRK7VRED310QFA5Q/Leopard+Opal+-2+Pear+Cab.JPG Blog - What is matrix opal? - Make it stand out A cabochon cut piece of precious black “Leopard” Mexican matrix opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646189447105-DC6X8RRULYDDDLHD0T0Z/Mississipi+opal+3.jpg Blog - What is matrix opal? - Make it stand out A specimen of matrix opal from Mississippi State USA, photo provided by Matthew Forir and Don Hoover. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1646189338840-7U6CST2Z7I9B01UXXX1G/Louisiana+Matrix+opal.JPG Blog - What is matrix opal? - Make it stand out Two pieces of sawn rough matrix opal from Louisiana State USW, the right hand piece has been treated, it is interesting to note that the opal has taken the treatment which suggests it may be hydrophane opal. https://www.opal.academy/home/2020/9/4/opal-mining-the-australian-way monthly 0.5 2022-04-29 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1643260853445-Y2B427JXEMHJJSC282IW/IMG_0184.JPG Blog - Opal Mining - The Australian way - the early days - Make it stand out The “first shaft” monument at the 6-mile, Lightning Ridge. an example of a hand driven opal mining shaft. You can visit this site on a tourist drive if you visit Lightning Ridge. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1643260909956-J2VLTD7CRUEID8TN2G3H/Sherman-27Jan22005.jpg Blog - Opal Mining - The Australian way - the early days - Make it stand out A miner digging a shaft by hand and labelled “Dave Smith, German Gully one of the lucky diggers” Coober Pedy South Australia, the old way of starting to dig a shaft for opal mining. Photo from the Sherman Archives. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1643250714974-E3AVGXQ3GK9JNOR75QXC/Windlass4.jpg Blog - Opal Mining - The Australian way - the early days - Make it stand out A hand operated windlass at Lightning Ridge https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1643250866831-0CU87Q8AY5T74IMHI7WJ/Sherman-27Jan22003.jpg Blog - Opal Mining - The Australian way - the early days - Make it stand out Miners at Coober Pedy with a hand operated windlass, note the windlass frame has been built up for loading on to a vehicle for transportation. Photo from the Sherman Archives. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1643254889470-XSYWKUKHOBQGPBKMJ6Y0/Sherman+Archives+Transparencies078.jpg Blog - Opal Mining - The Australian way - the early days - Make it stand out An opal miner “gouging” for opal underground in the early days of opal mining. Note the carbide lamp being used by the miner with glasses! https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1643254835287-OR0NP72CCVKJNN6YCTRD/Sherman+Archives+Transparencies077.jpg Blog - Opal Mining - The Australian way - the early days - Make it stand out An opal miner gouging for opal at the opal level underground in the early mining days. Notice the single candle just below the top of the gouging pick being used by the miner. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1643257196928-GVCY8PX7JGLBW0FPGDR6/Motorised+York+Hoist+-+Sherman+Transparencies115.jpg Blog - Opal Mining - The Australian way - the early days - Make it stand out A motor winch driven York hoist being used in Coober Pedy. This variety of hoist simplified the raising of the “bucket” and then allowed the miner to “Swing the bucket clear of the mining shaft. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1599207702994-AROOS9Y85QN061F6622D/Untitled.png Blog - Opal Mining - The Australian way - the early days Perhaps the next level of mining innovation is the self-unloading hoist seen here in the Coocoran Opal Fields Lightning Ridge precious stones field. The self-unlading hoist allowed the miner underground to unload a bucket of opal dirt without the need of an operator above ground. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1643259494315-JPOKOOU3YFEA9GF9B2P6/Washing.jpg Blog - Opal Mining - The Australian way - the early days - Make it stand out In this photo an older builders cement mixer has been modified to wash the opal dirt, in the Coocoran opal fields. https://www.opal.academy/home/2020/7/8/attributes-of-precious-opal monthly 0.5 2022-04-29 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1632460334867-HF04DTVZ7PVUFYRSBY5X/Blackopal-3.JPG Blog - Opal Appreciation - Attributes of Precious opal - Make it stand out A precious black opal showing a very bright red multi-coloured play-of-colour. Note that all the ‘spectral colours are visible in this gemstone. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626143506503-8Y3HD6QVJN94BZB8GOKX/Opal+Brightness-1.JPG Blog - Opal Appreciation - Attributes of Precious opal - Make it stand out A free form light opal on the left showing a moderately bright Play-of-colour, and a free form dark opal on the left showing a bright Play-of-colour. It can be argued that the darker body colour (Tone) of the opal on the right makes the brightness look more vibrant. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1632463258227-7I9F4O2FXGK0Z6L87SGA/Brilliant+Opal+-+New+Cover.JPG Blog - Opal Appreciation - Attributes of Precious opal - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1632464485078-D95WDV19XTWL73TBAJJ7/harlequin.png Blog - Opal Appreciation - Attributes of Precious opal - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1632469555192-0P7MZ0FZI5GCVJFCWH5N/body+tone.png Blog - Opal Appreciation - Attributes of Precious opal - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1632554647696-VPRGSAC3DZEI4JKSQC2M/Opal-CooberPedy-Oct2014-Fox-9.jpg Blog - Opal Appreciation - Attributes of Precious opal - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1632555388343-HNT6XZZUGI33VU1L2O6R/MexOpal1.jpg Blog - Opal Appreciation - Attributes of Precious opal - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2021/9/9/science-of-opal-symposium-22-october-2021 monthly 0.5 2023-02-11 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1631232460222-QLMIOA2BGQF6RLEU290W/unnamed.jpg Blog - Science of Opal Symposium - 22 October 2021 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1631232494541-VS8AVE5DBWKAWOFRN5C1/unnamed+%281%29.jpg Blog - Science of Opal Symposium - 22 October 2021 - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2020/8/17/opal-in-brazil monthly 0.5 2022-04-29 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1616633756782-DAME59G8EVXH0FYYAR47/Brazil+Map002.jpg Blog - Opal in Brazil https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1616633890573-6NIZHRCW6609I1XL22QQ/Brazil+Map003.jpg Blog - Opal in Brazil https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1616636410610-5AGX3CMJYNN656HYESBK/Brazil+Map004.jpg Blog - Opal in Brazil https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610510013139-83E3SSYHUARSD3ZY5J8T/Brazillian+POC.jpg Blog - Opal in Brazil A piece of light (White) precious opal rough (left) and a cabochon cut piece of Precious light crystal opal from Brazil on the right. This opal from Pedro 11 district. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610510132436-EAV3E0UE8KOPFH4MY0Y4/Brazillian+Fire+Opal.jpg Blog - Opal in Brazil Orange body coloured transparent “Fire opal” from Brazil. Some of this material is suitable for faceting gemstones 9lower left. Whilst cabochons of the material produce an interesting gemstones. This material is from Buriti dos Montes. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1628051880617-VHHX7X3PCMRX2PD3UH21/Brazil-Light+opal.JPG Blog - Opal in Brazil Eleven small and approximately 7 x 5mm light opal cabochons. Light and crystal precious opal from Brazil. https://www.opal.academy/home/2020/8/17/opal-poetry-art-and-music monthly 0.5 2023-01-12 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1627019276147-XP3YJF6M6AKMOSUW50P0/1970+Castro+-+3.JPG Blog - Opal Poetry, Art and Music - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610422333463-KX31YWVIAE0U53M0RUWC/Castro-43-95.jpg Blog - Opal Poetry, Art and Music https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610422054338-YKVTR3GFGQKYV2SWUJ5A/Castro-75-95.jpg Blog - Opal Poetry, Art and Music https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626155217831-XZXYKFY8K33CZ72S0C1K/Opals+MUSIC+Phillip+Houghton+description1.jpg Blog - Opal Poetry, Art and Music - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626155271561-0VYFPND8CPFHM1YM1T38/Opals+MUSIC+Phillip+Houghton+description2.jpg Blog - Opal Poetry, Art and Music - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626322025174-LKDNCWQIPJIJDVP1FSHC/Opal+Fossil+stamp+issue.JPG Blog - Opal Poetry, Art and Music - Make it stand out The most recent stamp issue to be released by Australia post - More information of the story to come. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626327138563-447AVFFYE2OQI1T8Q3BH/Black-Light+opa+stamps+-+Cody.JPG Blog - Opal Poetry, Art and Music - Make it stand out In 1995 this special stamp issue was made available, the two opal pictured were the result of special manufacturing techniques allowing an imprint of special iridescence to the opal pictures. The stamp issue was launched at the gala dinner in the Australian Museum in Sydney. More information to come! https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626327374669-WM0MBIX4IMPAQ2FSF71S/Older+gemstone+series+-opal.JPG Blog - Opal Poetry, Art and Music - Make it stand out A photograph of one of the original opal stamps issued by Australia post in a series based on Australian gemstones. https://www.opal.academy/home/2021/7/7/dr-paul-thomas monthly 0.5 2024-01-20 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626326767848-LVWT8I688ZXE465GGR2H/Paul+Thomas.jpg Blog - Paul Thomas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f585c89f-c336-4fe3-acaa-5a7d26773084/4.png Blog - Paul Thomas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/6fa211ce-8d3f-49e4-a1b2-b779d67b2e31/Opal+Interest.png Blog - Paul Thomas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0eff0e51-60b6-44c3-9918-565ebded957e/3.png Blog - Paul Thomas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/f2de2b11-41cd-41f4-9f9a-79d945e041fb/PUBLICATIONS+%284%29.png Blog - Paul Thomas - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2021/7/7/bruce-dickson monthly 0.5 2023-10-11 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1626233596950-N3JF1FRTOSBZ7FD5BNGV/Bruce+Dickson.jpg Blog - Bruce Dickson - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/9f698aa5-37b2-469d-9fef-289e0d869f67/Opal+Interest.png Blog - Bruce Dickson - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/ecf66dca-8268-4417-8040-81605d7482b4/4.png Blog - Bruce Dickson - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5d7ae0bd-ead5-47c5-9de1-6d755d7d8216/3.png Blog - Bruce Dickson - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1656739062690-PVK1X7JIX2VYSD4OOAUS/Abstract+AJES-Dickson+083.jpg Blog - Bruce Dickson - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1656739241329-U2CD752JS789KLBRJYI0/Abstract+AJES-Dickson+084.jpg Blog - Bruce Dickson - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.opal.academy/home/2020/8/17/template-nomenclature-e2564-5pw5z-x993j-ga7a5-hkzfn-gflrl-7hx69-xxghr-kbbts-6sf8p monthly 0.5 2021-07-14 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610605625544-9OH3MQRUD3VIB9OLUFWH/Map_of_Banten_region_Wikivoyage+%281%29.jpg Blog - Opal in Indonesia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610431436385-4AND75BVHAG9U9FYG8V3/Indo+Opal+-+Java+Black.jpg Blog - Opal in Indonesia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610431845213-M8GRIZ8UYSDJMU4AE3J2/IndonesiaVolOpals06.jpg Blog - Opal in Indonesia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610432086254-3BCAAQDOLETD8MAJ4M1D/Indo-AS-1.1.jpg Blog - Opal in Indonesia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610596802999-F57EBU6XQAH28WBHJ51L/Indo-AS-resincoated10.jpg Blog - Opal in Indonesia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1610595729378-TWDCIUDVA02RGZMSPU8C/Indo+Opal+2.JPG Blog - Opal in Indonesia https://www.opal.academy/home/2020/8/17/scottishgemmassociation monthly 0.5 2021-07-07 https://www.opal.academy/home/2020/8/17/template-nomenclature monthly 0.5 2023-10-05 https://www.opal.academy/home/2019/7/24/gemmological-classification-d7r8z monthly 0.5 2021-07-15 https://www.opal.academy/home/2021/1/7/opal-academy-on-nightlife monthly 0.5 2021-01-14 https://www.opal.academy/home/2020/8/17/template-nomenclature-e2564-5pw5z-x993j-ga7a5-hkzfn-gflrl-7hx69-xxghr-kbbts-s382n monthly 0.5 2023-07-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603765316408-PXO85X2RUGGUJFHG97G5/Tas010.jpg Blog - European Opal or .. Opal in Slovakia https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603767291862-E7AMH32U1K3R4SNWOXRH/Semrad+1.jpg Blog - European Opal or .. Opal in Slovakia https://www.opal.academy/home/2020/8/17/template-nomenclature-e2564-5pw5z-x993j-ga7a5-hkzfn-gflrl-7hx69-xxghr-kbbts-tm64a monthly 0.5 2021-07-08 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603327291339-JXN7O0UFL1QJIAT0OAD4/honduras_departments_named.jpg Blog - Opal in Honduras Map showing the ‘departments’ of Honduras Erandique is in the department of Lempira, lower left. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1601530249997-UY1C02R4QZFE8EAOJNIW/Honduras-Map-Lepira.jpg Blog - Opal in Honduras https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1602196362920-9DW4W9VIHBX629D96AYC/Honduran+-+1.JPG Blog - Opal in Honduras - An example of Black precious opal from Honduras. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1602281730868-KOAFUCBSF5DZWG8JIE3E/Honduran+Matrix+-+1.JPG Blog - Opal in Honduras https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1602283161371-X01FHBCC37YINM4VXMXN/Honduran+Matrix2.jpg Blog - Opal in Honduras https://www.opal.academy/home/2020/8/17/template-nomenclature-e2564-5pw5z-x993j-ga7a5-hkzfn-gflrl monthly 0.5 2022-07-01 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1627032556049-C1UIGJZR09NE1GWG2KLN/Mexico+2.jpg Blog - Opal in Mexico - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1627032593339-GQHKUDWNFH104252DKEN/Mexico+4.jpg Blog - Opal in Mexico - Make it stand out Above: Opal Miners in a mine in Queretaro Left: A view of the entrance and workings in the mine in Queretaro. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1602464806175-WYVVFNM4O1CKDLZOJTBH/mexico-map.gif Blog - Opal in Mexico https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1627033522784-UCCADJAMKN2H6YI8H2HP/Mexico+-+surface_geology.jpeg Blog - Opal in Mexico - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1627033563182-CPXT6Y7QUORMRM6G0RW4/Map-+Geology+Queretaro+-+Diaz+et+al+2005.jpg Blog - Opal in Mexico - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1602195499349-6REBRI82NGFBUL7MPPUR/Mexican+Fire+opal.jpg Blog - Opal in Mexico https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1602461651593-P6G13H4N51C9IPKJQRAN/Mexican+Boulder+Opal+2.jpg Blog - Opal in Mexico https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1602462393946-EL25R8JYE1W5O3K61SGC/Mexican+Boulder+Opal2.jpg Blog - Opal in Mexico https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603336875897-A51KAVWOKT3HPXU3FU7Q/Leopard+Opal+-2+Pear+Cab.JPG Blog - Opal in Mexico https://www.opal.academy/home/2020/8/17/template-nomenclature-e2564-5pw5z-x993j-ga7a5-3tr5p-cl5mt-2cbzx-bwg7y monthly 0.5 2023-02-13 https://www.opal.academy/home/2020/8/17/template-nomenclature-j3j89 monthly 0.5 2024-07-22 https://www.opal.academy/home/2020/7/8/valuation monthly 0.5 2021-03-15 https://www.opal.academy/home/2020/2/22/anthony-tony-smallwood monthly 0.5 2020-10-28 https://www.opal.academy/home/2020/2/21/john-krook monthly 0.5 2020-02-23 https://www.opal.academy/home/2020/1/1/frank-amp-viv-palmer monthly 0.5 2020-02-23 https://www.opal.academy/home/2020/1/1/rudy-weber monthly 0.5 2020-02-28 https://www.opal.academy/home/2020/1/1/dusan-milanovic monthly 0.5 2020-02-23 https://www.opal.academy/home/2020/1/1/sue-white monthly 0.5 2020-02-23 https://www.opal.academy/home/2020/2/22/joseph-schellnegger monthly 0.5 2021-07-10 https://www.opal.academy/home/2020/2/22/peter-sherman monthly 0.5 2020-02-23 https://www.opal.academy/home/2019/6/20/what-is-gemmology monthly 0.5 2020-02-22 https://www.opal.academy/home/2019/6/20/natural-opals monthly 0.5 2020-02-22 https://www.opal.academy/home/2019/9/12/the-serena-necklace monthly 0.5 2020-02-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1568338928554-HVSXVAT5GJWUHKJPNYIB/IMG_0310.jpg Blog - The Serena Necklace https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1569549106655-JY7M80N1SMX720B41V4Y/Serena+1.jpg Blog - The Serena Necklace https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1569549106653-F9POIGTO1W1YO1WXDUUU/Serena+2.jpg Blog - The Serena Necklace https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1569549131560-A9WUDDIMLECW6BYO7J76/Serena+4.jpg Blog - The Serena Necklace https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1569549129710-M4FNEBTLIONWL04YHPMH/Serena+5.JPG Blog - The Serena Necklace https://www.opal.academy/home/2019/8/22/tintenbar-nsw monthly 0.5 2020-10-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1566524743837-KAIQKHQB1XQP9HPL2K22/IMG_0305.jpg Blog - Tintenbar NSW Tony Smallwood and Isaac, displaying his collection of Tintenbar Opals. https://www.opal.academy/home/2019/6/20/synthetic-and-imitation-opals monthly 0.5 2022-07-01 https://www.opal.academy/home/2019/7/24/opal-nomenclature monthly 0.5 2020-10-31 https://www.opal.academy/home/2019/7/24/types-of-opal monthly 0.5 2020-02-22 https://www.opal.academy/home/2019/7/24/geological-classification monthly 0.5 2023-07-19 https://www.opal.academy/home/2019/7/24/mineralogical-classification monthly 0.5 2021-11-18 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1637225131453-LQ8JO0UDUCBBCKSXWOO3/OpalA.jpg Blog - Mineralogical Classification - Make it stand out An example of the XRD pattern for Opal-A as described above. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1637225178754-AR3NRKQC2LRFC9UX44Y6/OpalCT.jpg Blog - Mineralogical Classification - Make it stand out An example of the XRD pattern for Opal-CT as described above https://www.opal.academy/home/2019/7/12/triplet-opals monthly 0.5 2020-10-28 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1566525634761-P5NC2I7C3O11QVXN98U0/Composite+Opals+-+Triplets-2.jpg Blog - Triplet Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603863616630-K5NS0F54K2RTGJP0L9TB/A+Triplet+opal.JPG Blog - Triplet Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603863694920-FR0TG25XHFKXK2QIAODZ/A+Triplet+opal+under+construction.JPG Blog - Triplet Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1567331839560-8MBEO8UJBM0TF6TE60EZ/Opal+Triplet+Dress+ring.JPG Blog - Triplet Opals https://www.opal.academy/home/2019/7/12/doublet-opals monthly 0.5 2020-10-29 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1566525732487-RHA8VBTKBPMF5N0SIUG9/Composite+opals-+Doublet+opals.jpg Blog - Doublet Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603865889295-B4T3UO4KGZHH1REYM1B3/DSC_0269.JPG Blog - Doublet Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603866093489-BPDYP2JQNU1H1JDOPK8J/A+Doublet+opal+under+construction2.JPG Blog - Doublet Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603866371199-0HSE3HDGW93ZTLPEYCL1/Three+Doublet+opals+under+construction.JPG Blog - Doublet Opals https://www.opal.academy/home/2019/8/22/composite-opals monthly 0.5 2020-10-29 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603860286267-GAR3XOQWAZCL0L2UNS3W/A+Triplet+opal.JPG Blog - Composite Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603860791309-M2016HVMO7VM90OSHH8C/DSC_0269.JPG Blog - Composite Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603861120822-F2HT0B50RPHOT7Q7H76C/OpalMosaic+%287%29.JPG Blog - Composite Opals https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603861555521-BACUX3XZERN454BCZG01/Opal+Chip+Jewellery1.jpg Blog - Composite Opals https://www.opal.academy/home/2019/6/20/what-is-opal monthly 0.5 2020-08-21 https://www.opal.academy/home/2019/6/20/what-is-opal-4blyx monthly 0.5 2020-02-22 https://www.opal.academy/home/2019/6/20/what-is-opal-zxrl4 monthly 0.5 2020-02-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150859082-L2RKNID6POMACUY0KCR3/Untitled12.png Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150858636-H1W9TZI7VL9X5H2YXW0M/Untitled10.png Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150865862-JHEOBKSK9ZI38QDCOWNJ/Untitled8.png Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150865999-KPJHDF9SUBD58W1NHBUT/Untitled9.png Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548367902299-6LYIJ9QUJXRXSAMRYXFR/boot.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548367946428-A1W2EWLD2PYY4W4LBLXE/mulga+fires.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1552009901071-WB4YOC6ADIU6G9LME09Q/BlkOpalRedonBlack1-2.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150871486-A1N3JBHTM98GH22G3EHL/Untitled7.png Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150871721-FJD60B5P95D4EBH81Z78/Untitled6.png Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548366375883-WCVS6XVE9H3IL2PH7791/Artists+Palette+Cody.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548366247493-37O01JGREI0QLSSHY5HY/BlkOpal5.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150578854-NQ9IDF1KYFES92DFGAC7/image61.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548366262818-IJ9LKWF55HJJJDBJDPMG/Boulder3.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562902117839-3JP2ET3U16IGG6ST933Z/BlackOpal4-2.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548366228111-6PE6P8AVG1A3U3GB0TZ2/BlkOpal2.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150613704-ITX8QESU04DK4B2LYGVF/image59.png Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150617093-KASGLNNW19DW95DCZGN1/image58.png Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150619152-IQCZNV2FH7B7JB9BQLFU/image49.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150877285-9Y18LD0QDG8N4VORRM02/Untitled4.png Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150619882-E7ONFDTTK1BK0Q8YNFBX/image48.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150623322-50HB3LDQXACIKBEYBJ2P/image47.jpg Blog - 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What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315745002-GVR82YBFQ3HRTDFW3PEP/P9290512.JPG Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315746819-SDW6D1HHQNT4JF4PIYUH/PIC00018.JPG Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315753100-41L4WQBBSPMLF0B50XKV/PIC00022.JPG Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315763000-K1ON4XH6BY9TR91XWON9/PIC00028.JPG Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315800207-9UWMQQYA5SK0KBL8ZLDC/SueWhite3untitled7.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315800414-SGWK6QZKB7P1517XKIJ8/SueWhite4untitled10.jpg Blog - What makes Opal such a precious gemstone? https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315804275-NC7QCBEUUGNF6FGHW3SA/TreatedMatrix.JPG Blog - What makes Opal such a precious gemstone? https://www.opal.academy/home/2019/6/20/the-sherman-family monthly 0.5 2025-04-03 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074252431-JDKM31ULHBZPJT3NKUQ1/Ernie+Sherman-+Opal+Men019.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074251931-PWTIJVKJ7RQSD3A07CIR/Ernie+Sherman-+Opal+Men020.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074253318-X58BWYH6N2GLDVO2XNFF/Ernie+Sherman-+Opal+Men021.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074255429-579U2RSFNTDJ518YXN70/Ernie+Sherman-+Opal+Men022.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074257519-ID8I60DSK7OC66GQC793/Ernie+Sherman-+Opal+Men023.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074257287-E1JB6UY4P0BZH9LTXSPB/Ernie+Sherman-+Opal+Men024.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074259619-UW1E9BDE1895YW23U7DQ/Ernie+Sherman-+Opal+Men025.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074260110-QHV7ELJ1SYY2EPB2BYXW/Ernie+Sherman-+Opal+Men026.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074261706-KDHQT1KH460JBK27DIUR/Ernie+Sherman-+Opal+Men027.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074262168-YQK5T2L8ZLIO9U1QD0MC/Ernie+Sherman-+Opal+Men028.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074264522-3AVU78KSCAURN1B1OC39/Ernie+Sherman-+Opal+Men029.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074265220-DYWWS14ZGWL7AQKSDA0A/Ernie+Sherman-+Opal+Men030.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074265918-DDT2K9MYFLI4569ZB8SN/Ernie+Sherman-+Opal+Men031.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074269154-DDV1SP51M3OKPAS863U0/Ernie+Sherman-+Opal+Men032.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074269380-8N6IFLF9HO9PTAE3APXY/Ernie+Sherman-+Opal+Men033.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074271075-Z0RC6CGGWIJOT13QTBP3/Ernie+Sherman-+Opal+Men034.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074271551-53GABMPNXT8OBBBGPJ57/Ernie+Sherman-+Opal+Men035.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074273985-MHW1WOMKZH513IMWJOG5/Ernie+Sherman-+Opal+Men036.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074273986-WOYGRCGB05NIZ29ROZHS/Ernie+Sherman-+Opal+Men037.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074276217-UYFJP7MQCP1S516WLFVP/Ernie+Sherman-+Opal+Men038.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074276455-VYGALFE2WYIKL1S14T6F/Ernie+Sherman-+Opal+Men039.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074278550-17LSDB67R7JUSNZ51UKA/Ernie+Sherman-+Opal+Men040.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074279018-4V0KTI56OARLQ3VG3GYN/Ernie+Sherman-+Opal+Men041.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074285273-585TBMB2UCY67EZKTOEO/Ernie+Sherman-+Opal+Men042.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561074284576-HG6U65RE2K6DUYA2B9DG/Ernie+Sherman-+Opal+Men043.jpg Blog - The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562903353738-JN3ISEA8Q1V50YPIH932/Screen+Shot+2019-07-12+at+1.48.55+pm.png Blog - The Sherman Family - Ernie Sherman (EG Sherman 1st) Ernie Sherman in born in Bridford, Devonshire, England 22nd August 1876 The son of John and Georgina Sherman. Migrated to Australia in 1891 at the age of 14. Ernie Sherman began the “dynasty” of an opal family that survives to the third generation. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597727267725-LY25D1ABL8QOUS31EGA3/Greg+Sherman+%28EG+Sheman+2nd%29.jpg Blog - The Sherman Family - Greg Sherman (EG Sherman 2nd) Greg Sherman Born 19 may 1922 in Sydney Greg Sherman the second generation of the family following on the opal business. Greg first went to Lightning Ridge with his family in 1930. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1564015961823-PDZFV5C6SOR9X09BS4YU/Peter%2BSherman-2.jpg Blog - The Sherman Family - Peter Sherman Peter Gregory Sherman Born 18th February 1952 in Sydney. The third generation of the opal family. Peter’s interest in opal began at acout the age of 10 and continues today with the family opal business in Sydney. https://www.opal.academy/home/2019/6/20/the-history-of-opal-around-the-world monthly 0.5 2022-07-01 https://www.opal.academy/home/2019/6/20/australias-opal-history monthly 0.5 2022-06-30 https://www.opal.academy/home/2019/6/20/where-is-opal-found monthly 0.5 2020-02-22 https://www.opal.academy/home/2019/6/20/early-synthetic-opal monthly 0.5 2020-02-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562887536543-6NVME2H74ZZ49UBONPZ4/image-asset.png Blog - Early Synthetic Opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562887467660-ABKRK1D55IDERVHULR8Z/Screen+Shot+2019-07-12+at+9.23.59+am.png Blog - Early Synthetic Opal SEM micrograph showing the structure of early CSIRO synthetic opals. https://www.opal.academy/home/2019/6/20/treatments monthly 0.5 2021-04-27 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315238011-U7HOJQ5CC2Q3WKPEF9W4/FairyStone-treated+boulder2.jpg Blog - Treatments Treated Boulder sandstone opal “Fairy stone” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315267337-29ITGOUV8QQVG1X7ZRO4/image-asset.jpeg Blog - Treatments A cut and polished bead of “Fairy stone” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1619504289569-0IDL03VD38INVQA2T5EX/TreatedMatrix3.jpg Blog - Treatments Sugar and acid treated Andamooka Matrix Opal. This is a photomicrograph of a cabochon cut opal gemstone. Notice the pattern of small black spots which is representative of the treated “carbon” emplaced in the opal matrix as a consequence of the opal treatment. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1619502219917-N6YCDUVQ1MRDQQ6CENBY/Andamooka5.jpg Blog - Treatments Sugar and acid treated Andamooka Matrix Opal, formally termed treated “concrete” and now commercially referred to as “Rainbow opal” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562886689792-WOHBIVFQS6RIQEMZXIS0/Screen+Shot+2019-07-12+at+9.11.00+am.png Blog - Treatments “Smoke” Treated Ethiopian Hydrophane opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562886711669-TXJFX51X9PYSS656NZ01/Screen+Shot+2019-07-12+at+9.11.06+am.png Blog - Treatments Un-treated Ethiopian Hydrophane “crystal” opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562886104801-1H3GRDRAM6J7FPNZCGCD/Screen+Shot+2019-07-12+at+9.01.13+am.png Blog - Treatments A substantial crazed crystal opal. Fracture filling and “oiling” attempts to hide these lines however in most instances the attempts fail and the crazing is still evident with magnification as low as 10x. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562886217683-XCGAFQ0G2SGS5VTDFXF2/Screen+Shot+2019-07-12+at+9.02.51+am.png Blog - Treatments Un-treated and “separating” boulder opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562886242655-DWHQF57N10ZZXL6H9N3W/Screen+Shot+2019-07-12+at+9.03.04+am.png Blog - Treatments Resin Treated boulder opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562886274026-E6219JF1CB5N8UYD5UOO/Screen+Shot+2019-07-12+at+9.04.18+am.png Blog - Treatments A surface coated boulder opal. https://www.opal.academy/home/2019/6/20/equipment-amp-procedures monthly 0.5 2019-07-25 https://www.opal.academy/home/2019/8/22/chip-opals monthly 0.5 2020-02-22 https://www.opal.academy/home/2020/2/22/anthony-tony-smallwood-fy93r-75bzt monthly 0.5 2025-07-03 https://www.opal.academy/home/2019/6/27/boulder-opal-fields monthly 0.5 2020-08-21 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561699121353-4O68PMHMLB3TXSSUW8UL/BoulderProfile1.jpg Blog - Boulder Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561699126150-1R3ZH0C3C24XSB24BOT9/BoulderProfile2.jpg Blog - Boulder Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561699136009-NQI3KQ0VEKJWCG7MROHA/BoulderProfile4.jpg Blog - Boulder Opal Fields https://www.opal.academy/home/2019/6/27/mintabie-opal-fields monthly 0.5 2020-02-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680936290-8YFQAX6W0HC6F3XYX20P/BullDoz.jpg Blog - Mintabie Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680936867-XWJ036MNCJ3CCJ8OOMZ1/BullDozerMintabie.jpg Blog - Mintabie Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561681367572-9A4UVLADW49OWSZKEIFR/ClaimPegs.jpg Blog - Mintabie Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561680992469-0O1SWKCCRY7CJ3O99PLH/OpenCutNood.jpg Blog - Mintabie Opal Fields https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1561681035139-VZFVFN0QWXB5A1QC8TTS/IvanMine.jpg Blog - Mintabie Opal Fields https://www.opal.academy/home/category/Gemmology monthly 0.5 https://www.opal.academy/home/category/Art monthly 0.5 https://www.opal.academy/home/category/Occurences monthly 0.5 https://www.opal.academy/home/category/Valuation monthly 0.5 https://www.opal.academy/home/category/Nomenclature monthly 0.5 https://www.opal.academy/home/category/People monthly 0.5 https://www.opal.academy/home/category/Science monthly 0.5 https://www.opal.academy/home/category/Media monthly 0.5 https://www.opal.academy/home/category/Basics monthly 0.5 https://www.opal.academy/home/category/Famous+Opals monthly 0.5 https://www.opal.academy/home/category/Mining monthly 0.5 https://www.opal.academy/home/category/Cutting monthly 0.5 https://www.opal.academy/home/category/Sherman monthly 0.5 https://www.opal.academy/home/tag/Contributers monthly 0.5 https://www.opal.academy/home/tag/Gemmology monthly 0.5 https://www.opal.academy/home/tag/Scientist monthly 0.5 https://www.opal.academy/home/tag/People monthly 0.5 https://www.opal.academy/home/tag/Basics monthly 0.5 https://www.opal.academy/home/tag/History monthly 0.5 https://www.opal.academy/home/tag/Opal+Fields monthly 0.5 https://www.opal.academy/opal-gallery daily 0.75 2020-08-14 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150859082-L2RKNID6POMACUY0KCR3/Untitled12.png Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544150859082-L2RKNID6POMACUY0KCR3/Untitled12.png Opal Gallery 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https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315729544-ZY0ULPC4D4KK1W70TG8M/P5280834.JPG Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315739342-HM92JVUXZEUVIQD3WWBT/P9290502.JPG Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315729979-HNPAZ31Y67A010SMN4RB/P9290499.JPG Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315740869-WX02DFRNLM8M8KCCJJWC/P9290508.JPG Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315745002-GVR82YBFQ3HRTDFW3PEP/P9290512.JPG Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315746819-SDW6D1HHQNT4JF4PIYUH/PIC00018.JPG Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315753100-41L4WQBBSPMLF0B50XKV/PIC00022.JPG Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315763000-K1ON4XH6BY9TR91XWON9/PIC00028.JPG Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315800207-9UWMQQYA5SK0KBL8ZLDC/SueWhite3untitled7.jpg Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315800414-SGWK6QZKB7P1517XKIJ8/SueWhite4untitled10.jpg Opal Gallery https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1565315804275-NC7QCBEUUGNF6FGHW3SA/TreatedMatrix.JPG Opal Gallery https://www.opal.academy/literature daily 0.75 2023-10-12 https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-9982h monthly 0.5 2025-03-04 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/3cf866b0-cf45-46fc-b256-db9e37e94a7b/TULLIE+CORNWAITH+WOLLASTON_edited.jpg Literature - Tully Wollaston https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-9982h-mexgn monthly 0.5 2024-04-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/eed2c091-eace-4027-8c40-cb60949df894/Title+Page+-+Neville+Curtis_1_edited.jpg Literature - Chemistry Techniques used in researching opal - Neville Curtis - Opal Chemistry Research Techniques that are available https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-9982h-anayx monthly 0.5 2024-01-10 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d5cba53e-4492-44a3-861d-ab0c2efd30d9/Title+page+-+Review+Gemmology+-+French.jpg Literature - A discussion on Ethiopian Opal from our french colleagues. https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-9982h-6aenl monthly 0.5 2024-01-10 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/7e737580-bc40-4e76-87d0-faa077e5cab3/Lapjournal+Title+page-Downing_edited.jpg Literature - African Opal Unearthed https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-9982h-pk39g monthly 0.5 2024-01-10 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/39bc5087-b20f-4468-8e98-3e486e7fc450/GG+Title+page-GG+Vol+46%2C1_edited.jpg Literature - Play-of-Colour Opal from Wegel Tena, Wollo Province Ethiopia https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-9982h-23sxf monthly 0.5 2024-01-10 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/45541d6a-229f-4dfd-9345-954256497d62/GG+Fall2013+V49%5EJ7+title_edited.jpg Literature - The Origin of Digit patterns https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-9982h-ydyfz monthly 0.5 2024-10-29 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1d7703f7-1411-40c1-b369-e89f7a99a275/Title+-+Ethiopia+-+Hoover+1996-+v19%2C7_edited.jpg Literature - Ethiopia: A new source of Precious Opal https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke monthly 0.5 2024-01-08 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5ce65071-e335-43b9-bd66-5336b80098b3/WCliffs069.jpg Literature - WHITE CLIFFS-CRAM https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-6plje monthly 0.5 2024-01-10 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/33baeb30-6cdb-4089-b956-fa5da7cbab05/WCliffs+Drafrt_edited.jpg Literature - The White Cliffs Royal Commission https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-9982h-xxgea monthly 0.5 2025-03-03 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/5601e160-b94e-47be-95f6-f4e6c556fd46/White+Cliffs+title+page+for+web_edited.jpg Literature - White Cliffs Opal Field- A report by NSW Geological Survey https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-bkge7 monthly 0.5 2023-10-23 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4a8d633d-4409-48c4-921c-e5dc65693347/White+Cliffs+Town.jpg Literature - White Cliffs Opal Fields a commentary by Gwen Rowe https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-aak82 monthly 0.5 2023-10-13 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/b836c64f-f3f9-4129-b125-6223dd537423/Title-Cover+-++-+L%27Abbate%2C+D_edited.jpg Literature - OPAL CARVING-DANIELA L'ABBATE An extract from a book produced by Daniela L’Abbate an opal carving specialist, originally working in Lightning Ridge, NSW. More information from : www.opalcarving.com https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-4s7rb monthly 0.5 2023-10-13 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/55b8fbd8-67e7-4622-bef2-818a440fde01/Title_edited.jpg Literature - EVALUATION OF CARVED LIGHTNING RIDGE BLACK OPAL The picture to the left is a carving known as Boat on Sandstone an is an artistically abstract freeform black opal carving of seam opal . Originating from the Mulga field, gGawin in the Lightning ridge district, Carved by Christine Roussel. https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs-xzeke-hfhab monthly 0.5 2023-10-13 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/a94f5e29-0eca-45bf-b10d-acfdabe8ab04/Title+Kosminski-2_edited.jpg Literature - HISTORICAL FOLKLORE-KOSMINSKI https://www.opal.academy/literature/2021/5/7/template-zj9ms-b7twc monthly 0.5 2023-10-23 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/0280046c-5e9b-402f-a64f-d329b5d1f967/Title+Page+-+Discussion+-+Dickson%2C_edited.jpg Literature - Trace Elements in Black Opal https://www.opal.academy/literature/2021/5/7/template-zj9ms-b7twc-8z4l6 monthly 0.5 2023-10-09 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/8e734a2d-b9ff-4d94-9272-c06afd0bc758/Title-Cracking+of+Gem+Opals+-+Boris-Thomas-2_edited.jpg Literature - More on opal and cracking https://www.opal.academy/literature/2021/5/7/template-zj9ms-b7twc-7ahws monthly 0.5 2023-10-13 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/8face7a7-29b4-463a-a088-8627de8c95f3/Title+Page+-+Semrad+-+Jewellery+History.jpg Literature - New information - Slovakian opal https://www.opal.academy/literature/2021/5/7/template-zj9ms-b7twc-hp8bm monthly 0.5 2023-10-09 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/d2b1241d-9755-4cb6-b872-8cf8fae3d17e/Title+-+Pearson_edited.jpg Literature - Porosity of some opaline siliceous materials https://www.opal.academy/literature/2021/5/7/template-zj9ms-b7twc-78yjm monthly 0.5 2023-10-09 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/652492e8-ba99-46d7-a8bf-623c92ca798b/Title+-+The+Role+of+water+in+Opal%2C-2_edited.jpg Literature - The Role of water in the cracking of opal https://www.opal.academy/literature/2021/5/7/template-zj9ms-b7twc-yl9zl monthly 0.5 2023-09-29 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/bcc79f0a-53f8-4160-85a3-1629333e385d/Title+Page-+Whiting%2C+JW.%2C+Relph%2C+RE_edited.jpg Literature - AN Historic document: the Occurrence of Opal at Lightning ridge and Grawin. https://www.opal.academy/literature/2021/5/7/template-zj9ms-b7twc-ggmy5-7wsb5 monthly 0.5 2023-09-29 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/7739f928-9294-4362-8971-7de381fb8519/Title+Page+Curtis%2C+NJ%2C+29Si+SolidState+NMR+-+Relaxometry.jpg Literature - An analysis of Opal Polymorphs: Opal-AG, Opal-AN and Opal-CT by NMR https://www.opal.academy/literature/2021/5/7/template-zj9ms-b7twc-fg3nm monthly 0.5 2023-10-09 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/16440563-f9b6-4d10-8b2c-78228c60bc48/TitlePageCurtis%2C+NJ_edited.jpg Literature - A Review of the mineralogical opal classification https://www.opal.academy/literature/2021/5/7/template-zj9ms-b7twc-bjt75 monthly 0.5 2023-10-09 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/8e9d66c8-cd14-464d-af2b-f7d7ff7bb802/SynOpal2.jpg Literature - SYNTHETIC OPAL - A synthetic opal micrograph Lizard Skin pattern within the colour grains https://www.opal.academy/literature/2021/5/7/template-zj9ms-g88xs monthly 0.5 2023-09-14 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/4a790401-3526-46e5-9f1c-e78925d084fa/Title+Page+-+Smallwood+Trace+Elements+1.jpg Literature - Trace Elements in Australian Opal-1 https://www.opal.academy/literature/2021/5/7/template-zj9ms-l9nbh monthly 0.5 2023-08-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/c3a122d0-159c-4071-831b-d23187c9c7fe/Dana+Title+Page+extract.jpg Literature - Historical opal literature - an extract from Dana's Mineralogy https://www.opal.academy/literature/2021/5/7/template-zj9ms-w6ab9 monthly 0.5 2023-08-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/171a49ec-1514-489c-b8b5-78b6ae60d4eb/MArs-Planet+Photo.jpg Literature - An Extract from the Thesis of Boris Chauvrie - Boris Chauvrie Thesis Chapter: 5 https://www.opal.academy/literature/2021/5/1/gilc-decision-for-opal-nomenclature monthly 0.5 2023-08-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1620097166837-ZY8DH972LTMM1BTOD9QD/GILC+outlines+disclosure+-+National+Jeweller.jpg Literature - GILC and LMHC decisions for Hydrophane opal nomenclature https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1620100856977-8L6TPLLGT54U0543H7QK/LMHC%2BInformation%2BSheet_13_V2_2018+Hydrophane.jpg Literature - GILC and LMHC decisions for Hydrophane opal nomenclature https://www.opal.academy/literature/2020/10/29/opal-nomenclature-ag1997-zbnyx monthly 0.5 2023-08-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1619829788327-4J7VLBM3CHZUCE4KFJIS/Header+to+SA+Trade+Standards.jpg Literature - Opal Historical SA Trade standards (1979) https://www.opal.academy/literature/2020/10/29/opal-nomenclature-ag1997 monthly 0.5 2023-07-14 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1619516187613-LTJFMYZVL3KCCLDIIBE7/Nomenclature+-+AG.jpg Literature - Opal Nomenclature - AG1997 The Australian Gemmologist Volume 19, Number 12, October - December 1997 by The official journal of The Gemmological Association of Australia You can read the article by downloading the paper below https://www.opal.academy/literature/2020/5/8/title-d34dg monthly 0.5 2023-08-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1603873412831-80ZKLR1RG3QCERM2D2C8/Tas013.jpg Literature - The Story of European Precious opal from Dubnik by Peter Semrad Published: 1st January 2011 You can buy a copy here. https://www.opal.academy/literature/2020/5/8/title monthly 0.5 2023-09-14 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1593754284318-6RMJ95VUJHTY32G0NKF0/Title+Page+-+WhiteCliffs+Opal+Field+-+Relph+-1959.jpg Literature - The White Cliffs Opal Field, NSW The White Cliffs Opal Field, by R. E Relph https://www.opal.academy/literature/2020/8/20/the-opal-industry-in-australia-croll-1950 monthly 0.5 2023-08-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597914471984-QZ6H6CZEWHI1WYR9HW01/Opal+Industry+-+Croll+-+Title+page.jpg Literature - The opal industry in Australia The Opal Industry in Australia by I. C. H. Croll Published in 1950 https://www.opal.academy/literature/2020/10/1/opal-in-honduras monthly 0.5 2023-08-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1601530730167-BJFDDNYYW0QDXMDDCWAS/Honduras-Title+Page.jpg Literature - Opal report from honduras The Fire Still Burns by Tony Dabdoub https://www.opal.academy/literature/2020/7/2/historical-article-future-prospects-for-mining-at-lightning-ridge-nsw-govt-watkins-1980 monthly 0.5 2024-01-10 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1601533985090-UGWT55QX0N2XTQVQ6YW9/Title%252BPage%252B-%252BFuture%252Bprospects%252BLRidge.jpg Literature - Future prospects for mining at Lightning Ridge Future Prospects fro Opal Mining in the Lightning Ridge Region by J. J. Watkins Published 1984 https://www.opal.academy/literature/2020/7/3/historical-document-a-prospectors-guide-to-opal-mining-in-western-queensland-1966 monthly 0.5 2023-08-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1593755745860-JHZK20NV3MXA1KH6WREM/Title+Page+-+QLD+Mining+Journal011.jpg Literature - A Prospectors guide to Opal mining in Western Queensland A Prospectors Guide to Opal Mining in Western Queensland Published January 1966 https://www.opal.academy/literature/2020/7/3/historical-document-a-prospectors-guide-to-opal-in-the-yowah-eromanga-area-1967 monthly 0.5 2023-09-14 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1593757376437-EYN7YFJN4IHDRQLD9528/Title+Page+-+QLD+Mining+Journal+-+1967.jpg Literature - A Prospectors Guide to Opal in the Yowah - Eromanga Area A Prospectors Guide to Opal in the Yowah in the Eromanga Area Published October 1967 https://www.opal.academy/literature/2020/7/3/historical-article-anne-of-geirstein-the-maiden-of-the-mist-1878 monthly 0.5 2023-09-27 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1593762044702-SJZ8I3KYNRZENNYFFYT6/Title+Page+-+Anne+Of+Geirstein+-+Chapter+11.jpg Literature - Anne of geierstein or The Maiden of the Mist Anne of Geierstein or The Maiden of the Mist By Sir Walter Scott, Published 1878 https://www.opal.academy/literature/2020/8/8/irpfq5oo454jbl1d0q0uf2l4epovya monthly 0.5 2023-08-22 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1596872990518-F3TDNS4EMTVWNDQ97EAM/Nomenclature+-+Gunn.jpg Literature - An Opal Terminology An Opal Terminology by J. S. Gunn Published January 1971 https://www.opal.academy/literature/2020/8/8/world-of-opals-alan-ekert-chapter-6 monthly 0.5 2023-09-18 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1596873948861-KP6GXHXLHR40NQGH28C1/Nomencclature+-+Ekert.jpg Literature - The World of Opals The World of Opals by Allan W. Eckert You can purchase a full copy here. https://www.opal.academy/literature/category/Famous+Opal monthly 0.5 https://www.opal.academy/literature/category/Historical+Article monthly 0.5 https://www.opal.academy/literature/category/Gemmology monthly 0.5 https://www.opal.academy/literature/category/Valuation monthly 0.5 https://www.opal.academy/literature/category/Nomenclature monthly 0.5 https://www.opal.academy/literature/category/Science monthly 0.5 https://www.opal.academy/literature/category/People monthly 0.5 https://www.opal.academy/literature/category/Occurrences monthly 0.5 https://www.opal.academy/discussionboard daily 0.75 2023-10-12 https://www.opal.academy/discussionboard/2021/6/13/in-your-opinion-where-does-the-silica-come-from monthly 0.5 2021-07-09 https://www.opal.academy/discussionboard/2021/6/13/in-your-opinion-where-does-the-silica-come-from-48z9l monthly 0.5 2021-07-09 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https://www.opal.academy/about daily 0.75 2021-07-07 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1582437672745-JZ5K2BB44ZMCQEPG398E/IMG_20200124_112420.jpg About https://www.opal.academy/acknowledgements daily 0.75 2020-08-13 https://www.opal.academy/new-page-1 daily 0.75 2019-05-08 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548372171535-704B1Z4KZ7TD7J1GZY6S/2.png History https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1557359785703-KYXZKOASCAW5X8HN1YE4/BACK+TO+THE+LIBRARY.png History https://www.opal.academy/opal-history daily 0.75 2019-04-30 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1542322248588-K5H4IQKBZ8ED53OP4F4O/Screen+Shot+2018-11-16+at+9.50.27+am.png Opal Around the World A view of the Slovakian landscape of Zlatoblansky near Dubnik, Photo courtesy of Peter Semrad, “The story of European opal from Dubnik” https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1542322542974-H02NSMHENJ07G9BH9D7Y/Screen+Shot+2018-11-16+at+9.55.26+am.png Opal Around the World A view of the opal mining district Wegal Tena Wollo Province Ethiopia courtesy Gems and Gemmology Vol46. No.2, Summer 2010. https://www.opal.academy/folklore-superstition daily 0.75 2018-11-22 https://www.opal.academy/opal-occurences-geology daily 0.75 2019-05-08 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1552000217937-Z702JXJZ0VEPXPBJSJKM/4.png Occurences & Geology https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1549576151939-7EF40JH4YV1918UVBL41/Screen+Shot+2019-02-08+at+8.47.24+am.png Occurences & Geology https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1549576208792-VJM6P5J7MIRO00CVZS63/Screen+Shot+2019-02-08+at+8.49.51+am.png Occurences & Geology https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1549576254358-XVD96IL35MSUN6XSOZXG/Screen+Shot+2019-02-08+at+8.50.39+am.png Occurences & Geology https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1549576333669-DVORTHI6C7AHR6OI8RK1/Screen+Shot+2019-02-08+at+8.51.53+am.png Occurences & Geology https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1549576566406-EJ7XRWRKYXO69EQ7HMZJ/Screen+Shot+2019-02-08+at+8.55.40+am.png Occurences & Geology https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1557359964404-IZVQGIVJLT9HANNNPTW0/BACK+TO+THE+LIBRARY.png Occurences & Geology https://www.opal.academy/opal-basics daily 0.75 2019-05-08 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548372141278-PEMWYDWMLX99XJYM1V94/1.png Basics https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1557359437942-V75GCVHNSUAL4OSFPA4B/BACK+TO+THE+LIBRARY Basics https://www.opal.academy/opal-gemmology daily 0.75 2019-05-09 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548311561964-Y85EWHCPGTE77XXWZ86O/image-asset.png Gemmology https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1557360380889-VOPI6PHM7BVWEQ1HL332/BACK+TO+THE+LIBRARY.png Gemmology https://www.opal.academy/mining-processing daily 0.75 2019-05-09 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1552000408496-Y1M8MN55URX5IZIA4HCQ/Mining+%26+Processing Mining & Processing https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1552004244122-QVHOZGOX5ZWW4W32Q3L8/Blower.jpg Mining & Processing https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1552004265400-PL7DDRV0X27TL2F3T9WF/Calweld7.jpg Mining & Processing https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1552004321773-N9WUJ8YBSYI2BSY6J384/CalweldRidge1.jpg Mining & Processing https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1552004378916-L2XG5NVXJPXZD7W3ADJD/FrankUG5.jpg Mining & Processing https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1552004396159-3GIIR24P56P5MKYS4GMO/PneuHammer.jpg Mining & Processing 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Mining & Processing https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555482408604-6Z0BFLOS589RS64MMU28/Screen+Shot+2019-04-17+at+4.26.14+pm.png Mining & Processing https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555482513839-YNKGZ5PUEGD1UIDSYEE1/Screen+Shot+2019-04-17+at+4.27.57+pm.png Mining & Processing Hand Windlass and York Hoist White Cliffs opal field NSW. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555482618139-O1Y83QUTGFA8VYBZQXPA/Screen+Shot+2019-04-17+at+4.29.57+pm.png Mining & Processing A self-unloading hoist Coocoran Opal Fields Lightning Ridge precious stones field. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1557360540329-2PP5LLYM3BA7BSXT47UW/BACK+TO+THE+LIBRARY.png Mining & Processing https://www.opal.academy/opal-people-1 daily 0.75 2021-11-18 https://www.opal.academy/new-page-2 daily 0.75 2018-11-22 https://www.opal.academy/australian-opal-history daily 0.75 2019-06-14 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544159419343-8E0K65ZWCVNZF3X4ZKXM/Ernie+Sherman-+Opal+Men026.jpg Australian Opal History australian opal history https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544149031447-PZA0SE2BSKPQ4SV2MCBY/White+Cliff+Opal+Fields+%28NSW%29 Australian Opal History - white cliffs opal fields (nsw) A view of the outback town of White Cliffs NSW https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544149367796-2V5V7AVSUR24NP4NC66V/Lightning+Ridge+Opal+Fields+%28NSW%29 Australian Opal History - lightning ridge opal fields (NSW) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544149457388-B3YPZC3RBQVM579VQCR9/Coober+Pedy+Opal+Fields+%28SA%29 Australian Opal History - coober pedy opal fields (SA) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544149573309-V5NUKO9ZOQM1W08IZ7B7/Andamooka+Opal+Fields+%28SA%29 Australian Opal History - Andamooka Opal Fields (SA) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544149656474-P68UD2T8PC78S5EES3MX/Mintabie+and+Lambina+Opal+Fields+%28SA%29 Australian Opal History - Mintabie and Lambina Opal Fields (SA) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1544149721844-FRO0W3WZAAF8N97P0T9G/Boulder+Opal+Fields+%28QLD%29 Australian Opal History - Boulder Opal Fields (QLD) https://www.opal.academy/glossary daily 0.75 2019-03-04 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548311648882-NZPKFTB4O0ZA0B1GYF3W/image-asset.png Glossary https://www.opal.academy/theshermanfamily daily 0.75 2020-08-18 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380686847-G8LHCKLPYXX3XVBMGYZW/Ernie+Sherman-+Opal+Men019.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380686651-VN152I8ULVDYVACM0XCD/Ernie+Sherman-+Opal+Men020.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380690108-8GBMJWIWKR6NC4MCZR00/Ernie+Sherman-+Opal+Men021.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380692016-SYMOVRSGO83SQ2IPT462/Ernie+Sherman-+Opal+Men022.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380694582-M1VLVGYT90P93ZQO6FZO/Ernie+Sherman-+Opal+Men023.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380694265-ZP0S6QZ7LGUGXDPN6KFB/Ernie+Sherman-+Opal+Men024.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380696219-B4PIGJ5SP4913M0URV0N/Ernie+Sherman-+Opal+Men025.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380696820-6NLG0L2ZYC2QM7XN7HNZ/Ernie+Sherman-+Opal+Men026.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548827052986-4BX3UVFZAERGQ1SAVSTX/Ernie+Sherman-+Opal+Men027.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380698613-VSE2ZCY49ODXTXZ85L7Q/Ernie+Sherman-+Opal+Men028.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380700404-568XIXFIQ6X9J2E20H21/Ernie+Sherman-+Opal+Men029.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380701041-VEOXH0QX40VNISL2RWG8/Ernie+Sherman-+Opal+Men030.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380701800-C9UJFCTYRNKBIFZ3OV5L/Ernie+Sherman-+Opal+Men031.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380704193-Z19ARSA5DZ4SA0TYMXM0/Ernie+Sherman-+Opal+Men032.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380704789-DJRUJXXYCYOZESWZZE3W/Ernie+Sherman-+Opal+Men033.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380706576-70J0VVOKVDRJDMI0UQY7/Ernie+Sherman-+Opal+Men034.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380706778-RMXIDS0QEZ9P16SI3PK9/Ernie+Sherman-+Opal+Men035.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380709035-I2MJII6E2MKGLB0OUIKI/Ernie+Sherman-+Opal+Men036.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380709035-5K3QXKY7AZ6CGYXWI9RS/Ernie+Sherman-+Opal+Men037.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380711082-M8FLS5TX6IWOSY7SA12Q/Ernie+Sherman-+Opal+Men038.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380711288-RB8QJTG1OVPE2K1ES3O6/Ernie+Sherman-+Opal+Men039.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380713480-1K4KBJKCZFONIS94PUPV/Ernie+Sherman-+Opal+Men040.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380713681-A8HSH1X6ULYO2VBAHPOR/Ernie+Sherman-+Opal+Men041.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380719332-Q9PLY1YRKXX5YSA6I64R/Ernie+Sherman-+Opal+Men042.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380718534-8J9OWY7SPPC2JXZNVF6L/Ernie+Sherman-+Opal+Men043.jpg The Sherman Family https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1562903353738-JN3ISEA8Q1V50YPIH932/Screen+Shot+2019-07-12+at+1.48.55+pm.png The Sherman Family - Ernie Sherman (EG Sherman 1st) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597390161278-ALD9YJ7CVNBCOV26XFN9/Greg+Sherman+%28EG+Sheman+2nd%29.jpg The Sherman Family - Greg Sherman (EG Sherman 2nd) Greg Sherman Born 19 may 1922 in Sydney Greg Sherman the second generation of the family following on the opal business. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1564015961823-PDZFV5C6SOR9X09BS4YU/Peter%2BSherman-2.jpg The Sherman Family - PEter Gregory Sherman Born 18th February 1952 in Sydney. Peter and brother Warwick inherited and contineued the Sherman family opal business. Peter continues today as the third generation of the Sherman family promoting and selling Australia’s national Gemstone - Opal. https://www.opal.academy/tully-cornwaith-wollaston daily 0.75 2019-01-30 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380907780-QXHJYJ1M65BM7TCJZULY/TullyWollaston1.jpg Tully Cornwaith Wollaston https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548827501408-JONE5R3BXD22AJO4S1ZQ/Opal+Gemm+of+the+never+never+-+Cover.jpg Tully Cornwaith Wollaston https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548380936393-QVVVOOT429LUPFBEAOPV/TullyWCliffs7.jpg Tully Cornwaith Wollaston https://www.opal.academy/edmundmurphy daily 0.75 2019-02-07 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548381257143-XSPOWP4DIUQRXTHCUWQX/Edmun%2BMurphy.jpg Edmund Murphy https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548826391521-ZA185GTMXWJ1PTWGA7EE/Screen+Shot+2019-01-30+at+4.31.55+pm.png Edmund Murphy https://www.opal.academy/stan-keady daily 0.75 2019-04-18 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548381326398-KKLKIQYTNCFGPZ95S7AL/Screen+Shot+2019-01-25+at+9.33.18+am.png Stan Keady https://www.opal.academy/equipment-procedures daily 0.75 2019-05-08 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1550785797335-YP0P14235TKVHW3CVBK2/Screen+Shot+2019-02-22+at+8.39.38+am.png Equipment & Procedures - Black potch lines in a Lighting Ridge Black Opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1550786033010-LS89SGL22OYE86VR0RH9/Screen+Shot+2019-02-22+at+8.53.37+am.png Equipment & Procedures - Sand on the polished surface of a Queensland boulder opal https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1550785856508-Z69V3RLCBS6AWIRUOYDY/Screen+Shot+2019-02-22+at+8.47.46+am.png Equipment & Procedures - Light potch or matrix lines in a Lighting Ridge Black Opal https://www.opal.academy/treatments daily 0.75 2019-05-08 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548383147752-KMY1OYHE52RCEDCI8R5G/Screen+Shot+2019-01-25+at+1.25.27+pm.png Treatments ‘Smoke’ treated Ethiopian Hydrophane opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548383065206-4K7OTJQWDBORPQRTYLVH/Screen+Shot+2019-01-25+at+1.24.09+pm.png Treatments A substantial crazed crystal opal. Fracture filling and “oiling” attempts to hide these lines however in most instances the attempts fail and the crazing is still evident with magnification as low as 10x. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548382999079-RWLYWFMSXX7RTUFRERYO/image-asset.png Treatments Resin treated boulder opal. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1548382941656-F4T87N4ZYO6JQ5F092KV/Screen+Shot+2019-01-25+at+1.21.53+pm.png Treatments A surface coated boulder opal. https://www.opal.academy/synthetic-imitation-opals daily 0.75 2019-05-08 https://www.opal.academy/natural-opals daily 0.75 2019-05-08 https://www.opal.academy/education daily 0.75 2019-05-09 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1552000459102-MJWXSCH4JD55YRL2036L/Education Education https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1557361174056-CT31P5MMN9ZAKF4C7S9A/BACK+TO+THE+LIBRARY.png Education https://www.opal.academy/starting-to-mine daily 0.75 2019-04-17 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555483139314-L1O9D8HDZEUMKPJCQIB1/Screen+Shot+2019-04-17+at+4.37.41+pm.png Starting to Mine A 9” auger drill for opal prospecting Coocoran opal fields Lightning Ridge NSW https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555483524849-1GEAUID1D38X5890KI6W/Screen+Shot+2019-04-17+at+4.44.41+pm.png Starting to Mine Underground digging Carters Rush opal field Grawin precious stones field Lightning Ridge District NSW. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555483553340-MV6SFPMUBYYUX8NWJL5C/Screen+Shot+2019-04-17+at+4.44.49+pm.png Starting to Mine Opal dirt being loaded into a truck after being extracted by a blower at Lightning Ridge. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555483724400-BSDI4DLBFEUOTZ0DOPUU/Screen+Shot+2019-04-17+at+4.47.25+pm.png Starting to Mine Unloading opal dirt onto a conveyor for loading into an agitator. Lightning Ridge NSW. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555483747493-KGVT1TNEQZYAT0O78PMW/Screen+Shot+2019-04-17+at+4.47.31+pm.png Starting to Mine Showing opal dirt being conveyed into the agitator for processing. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555483783045-IKBVE2WROOX2EIQ8PGM2/Screen+Shot+2019-04-17+at+4.47.37+pm.png Starting to Mine Puddling tank Lightning Ridge NSW. https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1555483813841-Q2CH6HZ8H2FJ8D9EKUOG/image-asset.png Starting to Mine Line of agitators on sites at the puddling tank. https://www.opal.academy/nomenclature daily 0.75 2019-04-18 https://www.opal.academy/library-index daily 0.75 2021-07-09 https://www.opal.academy/courses daily 0.75 2020-05-09 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1582437058360-V4M052WWCINHZ8BWUWLL/4.png Courses https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1582437074227-NA58A37SHKSAQRDU8DDH/5.png Courses https://www.opal.academy/gemmology daily 0.75 2020-10-29 https://www.opal.academy/nomenclature-1 daily 0.75 2020-10-29 https://www.opal.academy/famous-opal daily 0.75 2020-10-29 https://www.opal.academy/the-basics daily 0.75 2020-10-29 https://www.opal.academy/occurences daily 0.75 2020-10-29 https://www.opal.academy/contribute-to-the-academy daily 0.75 2021-07-07 https://www.opal.academy/valuation daily 0.75 2020-10-29 https://www.opal.academy/acknowledgements-1 daily 0.75 2020-08-14 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597358852405-TIVSLNNNZBEKRFEQBQAN/Profile+image.png Acknowledgements (Copy) - MICHELLE HATCHER Opal valuation and commerce https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597359200631-UT0DJ9O3VGMI6C410QKP/image-asset.jpeg Acknowledgements (Copy) - jenni brammall Australian Opal Centre and fossil information https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597359328135-IGLUH9UPN0OU7PV03UIT/Profile+image.png Acknowledgements (Copy) - stuart jackson South Australian Opal and teaching (TAFE SA) https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597358917077-X7S13K3TW2GBJ6Z9H2NT/Profile+image.png Acknowledgements (Copy) - DANNY HATCHER Opal mining and anecdotes https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597359177026-VS3SB6JJDBGFAQITOYZS/Profile+image.png Acknowledgements (Copy) - vicki bokros Opal photos https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597359371990-C576YO91OC6SH4WY4YWU/Profile+image.png Acknowledgements (Copy) - Jeff Olliver Geology and specimens https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597358970809-31ZI8ZHF0283L4P63MW1/image-asset.jpeg Acknowledgements (Copy) - DANIELLA L’ABBATE Opal Carving https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597359270657-G9P2LLXG1CH77S2F0DOQ/image-asset.jpeg Acknowledgements (Copy) - len cram Opal books, photos and discussions https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597359429010-3RTX029MD3TWY9LSJVOL/Profile+image.png Acknowledgements (Copy) - John Watkins NSW geology and lecturing https://www.opal.academy/opal-advisory-service daily 0.75 2020-08-14 https://images.squarespace-cdn.com/content/v1/597006f5b8a79ba33f6508fe/1597384759250-PFLY41ERIUGF8B9F151M/LRidge-Original%2BOpalAdvisory.jpg Opal Advisory Service https://www.opal.academy/science daily 0.75 2020-10-29 https://www.opal.academy/discussion daily 0.75 2023-09-08 https://www.opal.academy/ask-tony daily 0.75 2021-07-07 https://www.opal.academy/library-index-1 daily 0.75 2023-11-09 https://www.opal.academy/scientists daily 0.75 2023-08-25