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Cuprian Smithsonite & Azurite

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TPX216479

Cuprian Smithsonite & Azurite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 3.5 × 2.5 cm
Description

Very interesting sample of this famous mine. The specimen consists of a crust of crystals cuprian smithsonite and azurite with minor malachite and dioptase. Compared to other pieces that I have from this site, I have deduced that the main mineral is cuprian smithsonite, but not analyzed, then it can also be a much rarer mineral due to the large variety of minerals found in this mine.

Mineral Data
What's on the rock

Cuprian Smithsonite

Variety Of: 

Smithsonite

Formula: 
ZnCO3
Strunz: 
5.AB.05
Hardness: 
4.0 - 4.5
Formula: 
(Zn,Cu)CO3

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...
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