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Digenite & Pyrite

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ESM740710

Digenite & Pyrite

Description Tabs

Description
Locality: 
East Colusa Mine, Berkeley Pit, Butte, Silver Bow County, Montana, United States of America
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 3 × 2 cm
Description

Lustrous iridescent digenite with pyrite on matrix

Mineral Data
What's on the rock

Digenite

Formula: 
Cu9S5
Strunz: 
2.BA.10
Hardness: 
2.5 - 3.0
Type Locality: 
Copper slate deposits, Sangerhausen, Saxony-Anhalt, Germany

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5