THE PREMIER MARKETPLACE FOR REAL GEMS
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      $125.00 USD
      Estimated RRP $400.00

      18.20 CTS DIOPTASE SPECIMEN-EMERALD GREEN

      1002
      4

      SKU
      TS9656
      Dimensions (mm)
      22.000 x 16.000 x 9.000mm
      Weight (cts)
      18.200
      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
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      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

      sedagems
      sedagems
      Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and gems stones he has collected on his many buying trips world wide. All stock has a money back guarantee as your continued business is our business.
      Mermaid Waters, Australia
      Verified
      19152 Feedback

      • dmcjr1875
        dmcjr1875
        Positive

        I'm expecting an experience of good reasoning.

      • ksrocks
        ksrocks
        Positive

        Thank you lovely specimen

      • laurahawkmoth
        laurahawkmoth
        Positive

        wow -- amazing texture & translucence!

      • mattosh82
        mattosh82
        Positive

        Received!!!! So awesome! Thank you so much! Will definitely be visiting your store again soon.

      5%
      Coupon code SEDADEALS
      Valid Until
      4th Mar 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 : 2399643
      Starts : 21st January 2025 08:16 pm PST
      * All prices are in USD