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Dioptase & Calcite

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MGR571888

Dioptase & Calcite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 2.5 × 2.9 cm
Description

The most difficult mineral to photograph: Dioptase! It is simply impossible to capture the intense green color and the mirror-like lustre of crystals. This specimen shows the mineral in the very best quality. In person the color looks fantastic and all faces show exceptional luster. Not even one crystal is broken, damaged not even contacted. They are resting on snowy white, well developed calcite crystals, which are very also glossy. Amazing quality, wonderful contrast, aesthetic on very high level, no significant damages to report.

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...

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White