Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Dioptase Calcite & Goethite

Views:
Watches:
ESM657449

Dioptase Calcite & Goethite

Classic Locality

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.2 × 4.2 × 2.5 cm
Description

Lustrous green dioptase crystals on clear calcite rhombs on lustrous brown botryoidal goethite crystals

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

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany