65.4 CTS DIOPTASE SPECIMEN-EMERALD GREEN [MST8421]
- 存貨單位
- 尺寸(毫米)
- x x mm
- 重量 (cts)
- Certified Gemstones
- 不
- Shape
- Emerald
- 顏色
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SEDA GEMS
RARE DIOPTASE
This is a natural untreated specimen of Dioptase on its natural matrix from Kazakhstan
Great specimen.
Weight 65.4 cts app
Size 29X25X17 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, 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 alkaline pH. 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
- 存貨單位
- 尺寸(毫米)
- x x mm
- 重量 (cts)
- Certified Gemstones
- 不
- Shape
- Emerald
- 顏色
-
SEDA GEMS
RARE DIOPTASE
This is a natural untreated specimen of Dioptase on its natural matrix from Kazakhstan
Great specimen.
Weight 65.4 cts app
Size 29X25X17 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, 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 alkaline pH. 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
運輸商 | 運送至:國家 | 運送到世界其他地區 |
---|---|---|
FedEx | $12.00 / :幾天天 | $39.00 / :幾天天 |
:國家
FedEx訂單折扣為$12.00 2或更多商品
世界其他地區
FedEx訂單折扣為$39.00 2或更多商品
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Registered Shipping | $9.00 / :幾天天 | $16.00 / :幾天天 |
:國家
Registered Shipping訂單折扣為$9.00 2或更多商品
世界其他地區
Registered Shipping訂單折扣為$16.00 2或更多商品
|
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積極的
Good stone great service
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積極的
Great thank very much, lovely pearls.
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積極的
Nice piece of rough. thankyou
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積極的
Nice stone. Thankyou
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積極的
Have received the rough. Nice colour. Thankyou