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Chalcophyllite

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RGR180467

Chalcophyllite

Description Tabs

Description
Locality: 
Piesky, Špania Dolina, Banská Bystrica County, Banská Bystrica Region, Slovakia (Slovak Republic)
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 8 × 4 cm
Description

An exceptionally large and rich specimen. Sparkling green small crystals of Chalcophyllite lining cavities and covering an azurite matrix. A very nice display 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