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Dioptase

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PDM753178

Dioptase

Gem Crystal

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 5.2 × 3.1 cm
Largest Crystal: 
0.40cm
Description

Gemmy and highly lustrous crystals of dioptase to 4 mm of a good emerald green colour, scattered on a carpet of calcite crystals. They are well exposed and quite aerial. Condition is very good.

An aesthetic specimen from Willy Israel, a well-known Belgian collector of Tsumeb minerals who bought it in Tsumeb in 1978.

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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