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Chalcocite

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WND565618

Chalcocite

Description Tabs

Description
Locality: 
Santa Rita District, Grant County, New Mexico, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.6 × 1.8 cm
Largest Crystal: 
2.80cm
Description

A really nice group of chalcocite covered pyrite crystals ( variety ducktownite) up to 2.8 cm across with no matrix, with a nice pale green patina from Santa Rita, New Mexico. A really nice and quite large example of the chalcocite/pyrite variety ducktownite.

Mineral Data
What's on the rock

Chalcocite

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

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