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0 item @ $0.00  

Chalcocite

#RW50164

Chalcocite

#RW50164
Availability
Sold
Size
13 x 12 x 7 cm - Cabinet 
Formula
Cu2S (RRUFF)
Locality
Morenci mine, Greenlee Co., Arizona, United States
Tagged
ore mineral , sulfide , copper

This is a large heavy massive chunk of Chalcocite, an ore of Copper containing 79.9% Cu.  It is an excellent example of pure, bluish grey Chalcocite. It is sectile when scratched with a knife. HEAVY and may require extra shipping.

Chalcocite

Formula
Cu2
Crystal System
Monoclinic 
Crystal Habit
Massive, Granular, Euhedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
blue black, gray, black, black gray, steel gray 
Streak
grayish black 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
2.5-3 

Data courtesy of Webmineral.

Collection
Robert J. Waidler Collection

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