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Chalcocite Malachite

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CFL687007

Chalcocite Malachite

Description Tabs

Description
Locality: 
Copper Valley Mine, Cheshire, New Haven County, Connecticut, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.8 × 1.1 cm
Weight: 
20.00gr
Description

Typical specimen of chalcocite associated with malachite from a very old copper mine.

Mineral Data
What's on the rock

Chalcocite

Formula: 
Cu2S
Strunz: 
2.BA.05
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

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