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Enargite

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DVE106409

Enargite

Ex-John H. Eicher Collection; ex-David J. Eicher Collection

Description Tabs

Description
Locality: 
Butte, Silver Bow County, Montana, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.6 × 1.2 cm
Description

More than two dozen thumbnail specimens of enargite from an old collection. The dimension given is for the largest piece. The glass jar shown here has a diameter of 5.3 cm. Collected by John H. Eicher in the 1930s.

Mineral Data
What's on the rock

Enargite

Formula: 
Cu3AsS4
Strunz: 
2.KA.05
Crystal System: 
Orthorhombic
Hardness: 
3.0
Streak: 
Black.
Type Locality: 
San Francisco vein, Morococha District, Yauli Province, Junín Department, Peru
David J. Eicher

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