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Cosalite with Chalcopyrite

#55935

Cosalite with Chalcopyrite

#55935
Availability
Sold
Size
4.5 x 3 x 2.5 cm - Miniature 
Formula
Pb2Bi2S5 (RRUFF)
Locality
Bolivar mine, Piedras Verdes, Chihuahua, Mexico
Tagged
sulfide

Strands and filiform silvery, exceptional crystals of Cosalite to 4mm. 

Cosalite

Formula
Pb2Bi2S5 
Crystal System
Orthorhombic 
Crystal Habit
Radial, Massive - Fibrous 
Cleavage
Good, None, None 
Luster
Metallic 
Color
gray, steel gray, silver white 
Streak
black 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
2.5-3 

Data courtesy of Webmineral.

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