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Chalcophyllite & Azurite

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FNW61432

Chalcophyllite & Azurite

Description Tabs

Description
Locality: 
Piesky, Špania Dolina, Banská Bystrica County, Banská Bystrica Region, Slovakia (Slovak Republic)
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 1.5 × 1.3 cm
Description

Group of green hexagonal chalcophyllite crystals with azurite on two sides of the specimen.

Mineral Data
What's on the rock

Chalcophyllite

Formula: 
Cu18Al2(SO4)3(AsO4)3(OH)27·33H2O
Strunz: 
8.DF.30
Crystal System: 
Trigonal
Hardness: 
2.0

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...
Fine Minerals World