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1

38.80 CTS DIOPTASE SPECIMEN-EMERALD GREEN

存貨單位
TS9663
尺寸(毫米)
23.000 x 16.000 x 8.000mm
重量 (cts)
38.800
類型
Specimen
顏色

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

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:國家
Registered Shipping 對包含 2 或更多商品的訂單折扣為 $9.00
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Registered Shipping 對包含 2 或更多商品的訂單折扣為 $16.00

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.
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  • royrock
    royrock
    積極的

    Beautiful agate piece , and as always fast efficient service from Sedagems

審計

Gemstone Sheriff計劃允許我們的會員請求對任何產品進行審核,該審核由獨立的 Gemologist 人員完成,該資格人員評估商品描述和圖片的準確性。

送貨細節

船運:
$16.00 :通過 Registered Shipping 計算天數
發貨自:
Australia

付款方式

  • paypal
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概述

列表類型 : Standard
產品編號 : 2399659
開始 : 31st October 2024 09:47 pm PDT
* 所有價格均以:貨幣為單位