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Chalcanthite & Picropharmacolite

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RBM1041784

Description Tabs

Description
Locality: 
Union Pit, Andina Mine, Valparaíso Region, Chile
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 4.6 × 2.3 cm
Description

Botroidal and prismatic crystales of chalcanthite are acompanied by acicular picropharmacolite.

Mineral Data
What's on the rock

Chalcanthite

Formula: 
CuSO4·5H2O
Strunz: 
7.CB.20
Crystal System: 
Triclinic - Pinacoidal
Hardness: 
2.5
Streak: 
White
Type Locality: 
Chuquicamata Mine, Chuquicamata District, Calama, El Loa Province, Antofagasta Region, Chile

Picropharmacolite

Formula: 
Ca4Mg(AsO4)2(HAsO4)2·11H2O
Strunz: 
8.CH.15
Crystal System: 
Monoclinic Needles and encrustations
Hardness: 
1.0 - 2.0
Streak: 
White
Type Locality: 
Ore dumps, Richelsdorf Smelter, Süss, Richelsdorf District, Hesse, Germany

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