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Chalcophyllite

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CHA763545

Chalcophyllite

Classic Locality

Description Tabs

Description
Locality: 
Špania Dolina, Banská Bystrica County, Banská Bystrica Region, Slovakia (Slovak Republic)
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 1.8 × 0.8 cm
Description

specimen with some wonderful greenish exagonal tabular crystals of chalcophyllite on matrix.

For value the dimension of the crystals I remenber you that the photos of my specimens are taken at only 20/40 enlargement!

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

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