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Digenite & Covellite

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ESM630316

Digenite & Covellite

Description Tabs

Description
Locality: 
Butte, Silver Bow County, Montana, United States of America
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 2 × 1.2 cm
Description

Massive lustrous dark digenite intergrown with iridescent covellite and minor pyrite

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

Covellite

Formula: 
CuS
Strunz: 
2.CA.05a
Crystal System: 
Hexagonal
Hardness: 
1.5 - 2.0
Type Locality: 
Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy