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Dioptase & Duftite

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CR548096

Dioptase & Duftite

Classic Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 3 cm
Description

This is truely a very good and pristine dioptase specimen from Fritz Haller collection.

Sharp and lustrous, deep green dioptase crystals partly covered with pale green duftite.

Very beautiful and showy specimen !

Matrix: 
Calcite
Previous labels supplied (not photographed)
Condition
Main Display: 
Excellent
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...

Duftite

Formula: 
PbCu(AsO4)(OH)
Strunz: 
8.BH.35
Crystal System: 
Orthorhombic
Hardness: 
4.5
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia