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Malachite Psm Psm Azurite

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MGR657406

Malachite Psm Psm Azurite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.6 × 5.3 × 4.2 cm
Description

This is an excellent pseudomorph cast. There are several exposed sharp terminated crystals of azurite replaced by malachite. You can see the glossy radial stratiation on each face. Hard to photograph, even better in person. No significant demages to report.

Mineral Data
What's on the rock

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

Azurite

Formula: 
Cu3(CO3)2(OH)2
Strunz: 
5.BA.05
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Chessy copper mines, Chessy-les-Mines, Le Bois d'Oingt, Rhône, Rhône-Alpes, France...