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Dioptase

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ATM1092792

Dioptase

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Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.66 × 2.58 × 2.2 cm
Largest Crystal: 
1.30cm
Description

Single dominant Dioptase crystal with small crystal around base.  Some etching on faces.  Bright Emerald Green with good lustre.  Dioptase surrounded by small Calcite or Smithsonite plus tiny Duftite.

 

Mineral Data
What's on the rock

Dioptase

Formula: 
CuSiO3·H2O
Strunz: 
9.CJ.30
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
Green
Type Locality: 
Altyn-Tyube dioptase deposit (Altyn-Tube), Altyn-Tyube area, Kirghiz Steppes (Asiatic Steppes), Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan...

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