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      $60.00 USD
      Price

      20.50cts Koroit Boulder Opal Polished Stone * AOH-4009

      788
      2

      SKU
      Dimensions (mm)
      24.000 x 13.700 x 8.400mm
      Weight (cts)
      20.500
      Type
      Cabochon, Polished
      Colours

      Down Under Opals

      "Dreaming Opals"

      The Koroit opal field is an opal mining area in Paroo Shire in South West Queensland, Australia. It is located about 80 km north northwest of Cunnamulla. It is not a town, nor should it be confused with the town of Koroit in rural western Victoria, Australia. It has neither electricity nor running water. Koroit is close to the town of Yowah which also produces a similar type of opal.

      The Koroit opal field is known for the very distinctive type of boulder opal that is found in its mines. In Queensland boulder opal is found within a 300 km wide belt of sedimentary rocks in the Winton Formation. Here opal is found as a kernel in small concretions.

      The Koroit Opal field was discovered in 1897 by Lawrence Rostron. The most recent mining events started in 1972 when the popularity and profitability of the stone increased. The mining is done by either open cut large scale mining or by underground shafts.

       

      Stone :  Koroit Boulder Opal

      Outback Queensland Australia

      Cut and Polished. 

      This beauty is ready to be set in jewellery. 

      We use a 100mm Macro Lens to capture as much detail as possible, sometimes these details are not visible to the common eye.

      Please note : Not all scales are made the same, so slight variation in measurements and weight are to be expected.

      Also with finished stones we generally take thickness measurement in the middle of the stone.

      FREE HOLE DRILLING IF POSSIBLE TO DO SAFELY. (0.5-5MM)

      WE OFFER FREE COMBINE SHIPPING - (7 DAYS)

      Member of the " Queensland Boulder Opal Association "

      Member of the " Lightning Ridge Miners Association "
      Member of the " Opal Association of Australia "

      Shipping provider Shipping to Australia Shipping to rest of world
      Standard Shipping - Tracked $15.00 / 5 days $20.00 / 15 days
      Australia
      Standard Shipping - Tracked is discounted to $15.00 on orders with 2 or more items
      Rest of the world
      Standard Shipping - Tracked is discounted to $20.00 on orders with 2 or more items
      FedEx $50.00 / 7 days $50.00 / 7 days
      Australia
      FedEx is discounted to $50.00 on orders with 2 or more items
      Rest of the world
      FedEx is discounted to $50.00 on orders with 2 or more items
      Express Shipping $20.00 / 2 days $50.00 / 10 days

      downunderopals
      downunderopals
      Specializing in Queensland Boulder Opal, all fields. We source our rough directly from miners and miners only on majority of our stock. I had left the business for a few years to follow another career path, this did not last long and back in the game full time. Concentrating mostly on rough and rubs from Yowah, Koroit and some traditional boulder from Winton, Quilpie, Jundah, Eromanga and Opalton. Working hard to bring you the best prices and quality. As time progresses so will my stock level.
      Helensvale, Australia
      Verified
      4220 Feedback

      • darkclark
        darkclark
        Positive

        Very nice hopefully I Can get a good stone out of it

      • jerzeboy47
        jerzeboy47
        Positive

        well package, fast shipping even coming through LA

      • jerzeboy47
        jerzeboy47
        Positive

        well packaged, fast shipping

      • jerzeboy47
        jerzeboy47
        Positive

        well packaged , fast shipping

      Audit

      The Opal Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

      Shipping Details

      Shipping:
      $20.00 15 days via Standard Shipping - Tracked
      Ships from:
      Australia

      Payment Options

      • paypal
      • stripe
      • gempay
      This seller adds 10.00% tax to transactions in Australia.

      Overview

      Listing Type : Standard
      Product ID : 1398006
      Starts : 11th February 2025 04:42 pm PST
      * All prices are in USD