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      $100.00 USD
      Estimated RRP $350.00

      14.57 CTS DIOPTASE SPECIMEN-EMERALD GREEN

      825
      3

      SKU
      TS9657
      Dimensions (mm)
      19.000 x 13.000 x 8.000mm
      Weight (cts)
      14.570
      Type
      Specimen
      Colours

      SEDA GEMS

      RARE DIOPTASE

      This is a natural untreated specimen of Dioptase on its natural matrix from Kazakhstan

      Great specimen.

      Weight cts app

      Size 3 mm app

      Dioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. It is transparent to translucent. Its luster is vitreous to sub-adamantine.

      Late in the 18th century, copper miners at the Altyn-Tyube (Altyn-Tube) mine, in Karagandy Province, Kazakhstan thought they found an emerald deposit of their dreams. They found fantastic cavities in quartz veins in a limestone, filled with thousands of lustrous emerald-green transparent crystals. The crystals were dispatched to Moscow, Russia for analysis as they thought they were Emeralds.

      Dioptase is a very rare mineral found mostly in desert regions where it forms as a secondary mineral in the oxidized zone of copper sulfide mineral deposits. However, the process of its formation is not simple, the oxidation of copper sulfides should be insufficient to crystallize dioptase as silica is normally minutely soluble in water except at highly alkalinepH. The oxidation of sulfides will generate highly acidic fluids rich in sulfuric acid that should suppress silica solubility. However, in dry climates and with enough time, especially in areas of a mineral deposit where acids are buffered by carbonate, minute quantities of silica may react with dissolved copper forming

      Shipping provider Shipping to Australia Shipping to rest of world
      FedEx $12.00 / 3 days $39.00 / 10 days
      Australia
      FedEx is discounted to $12.00 on orders with 2 or more items
      Rest of the world
      FedEx is discounted to $39.00 on orders with 2 or more items
      Registered Shipping $9.00 / 7 days $16.00 / 21 days
      Australia
      Registered Shipping is discounted to $9.00 on orders with 2 or more items
      Rest of the world
      Registered Shipping is discounted to $16.00 on orders with 2 or more items

      14.57 CTS DIOPTASE SPECIMEN-EMERALD GREEN
      Qld, Australia
      Owned by sedagems

      • emriggs91
        emriggs91
        Positive

        Awesome job shipping and even gave me a free bonus fossil! Thank you! I will order again!

      • summer29
        summer29
        Positive

        So awesome! My sister lived in Gympie for many many years and now she has a little piece of Gympie to keep with her. Thank you

      • summer29
        summer29
        Positive

        Received. Pretty stone

      5%
      Coupon code SEDADEALS
      Valid Until
      4th Apr 2025

      Audit

      The Gemstone 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:
      $16.00 21 days via Registered Shipping
      Ships from:
      Australia

      Payment Options

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

      Overview

      Listing Type : Standard
      Product ID : 2399644
      Starts : 19th March 2025 09:16 pm PDT
      * All prices are in USD