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0 item @ $0.00  

Chalcopyrite ps after Covellite

#45844

Chalcopyrite ps after Covellite

#45844
Availability
Sold
Size
4.5 x 4 x 1.5 cm - Miniature 
Formula
Cu1+Fe3+S2 (RRUFF)
Locality
Butte dist., Silver Bow Co., Montana, United States
Tagged
sulfide , coper

A fine group of tightly packed Covellite crystals, which according to van Laer are replaced by Chalcopyrite. The crystals are about 5-7mm but some measure out to be over 1cm. Nice, clean specimen without a knick or scratch.

Chalcopyrite

Formula
Cu1+Fe3+S2 
Crystal System
Tetragonal 
Crystal Habit
Euhedral Crystals, Striated, Druse 
Cleavage
Indistinct, None, None 
Luster
Metallic 
Color
brass yellow, honey yellow 
Streak
greenish black 
Class
Tetragonal - Scalenohedral 
Fracture
Brittle 
Hardness
3.5 

Data courtesy of Webmineral.

Collection
Chris van Laer Collection

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