THE PREMIER MARKETPLACE FOR REAL GEMS
$44.00 USD
Estimated RRP $165.00
534
0

36.40 CTS DIOPTASE SPECIMEN-EMERALD GREEN

SKU
TS9664
Dimensions (mm)
34.000 x 23.000 x 11.000mm
Weight (cts)
36.400
Type
Specimen
Colours

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

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
19038 Feedback

  • ryumaru
    ryumaru
    Positive

    Beautiful ametrine. Very fast delivery. Professional seller

  • kewpie
    kewpie
    Positive

    Really beautiful piece. Very happy

  • laurahawkmoth
    laurahawkmoth
    Positive

    Amazing, beautiful & mysterious impactite

  • laurahawkmoth
    laurahawkmoth
    Positive

    amazing inner life & iridescence -- lovely

  • kewpie
    kewpie
    Positive

    this is SUCH a nice piece - they have a lifetime customer - great customer service and communication - THANK YOU

5%
Coupon code SEDADEALS
Valid Until
2nd Jan 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 : 2399660
Starts : 29th November 2024 08:47 pm PST
* All prices are in USD