63.50 CTS RARE EMERALD GREEN DIOPTASE FROM KAZAKHSTAN MGW136
- Artikelnummer
- Abmessungen (mm)
- x x mm
- Gewicht (cts)
- Typ
- Specimen
- Farben
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MINERAL GEM WORLD
RARE DIOPTASE
This is a natural untreated specimen on its natural matrix from Kazakhstan
Great specimen.
Weight 63.50 cts app
Size 40 x 31 x 13 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 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 dioptase and chrysocolla
- Artikelnummer
- Abmessungen (mm)
- x x mm
- Gewicht (cts)
- Typ
- Specimen
- Farben
-
MINERAL GEM WORLD
RARE DIOPTASE
This is a natural untreated specimen on its natural matrix from Kazakhstan
Great specimen.
Weight 63.50 cts app
Size 40 x 31 x 13 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 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 dioptase and chrysocolla
Versandanbieter | Versand nach Australia | Versand in den Rest der Welt |
---|---|---|
FedEx | $12.00 / 3 | $39.00 / 10 |
Australia
FedEx erhält Rabatt auf $12.00 bei Bestellungen mit 2 oder mehr Artikeln
Rest der Welt
FedEx erhält Rabatt auf $39.00 bei Bestellungen mit 2 oder mehr Artikeln
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Registered Shipping | $9.00 / 7 | $16.00 / 21 |
Australia
Registered Shipping erhält Rabatt auf $9.00 bei Bestellungen mit 2 oder mehr Artikeln
Rest der Welt
Registered Shipping erhält Rabatt auf $16.00 bei Bestellungen mit 2 oder mehr Artikeln
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Positiv
Good stone great service
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Positiv
Great thank very much, lovely pearls.
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Positiv
Nice piece of rough. thankyou
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Positiv
Nice stone. Thankyou
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Positiv
Have received the rough. Nice colour. Thankyou