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Stromeyerite with Bornite

#PD34272

Stromeyerite with Bornite

#PD34272
Availability
Sold
Size
11 x 11.5 x 5 cm - Cabinet 
Formula
CuAgS (RRUFF)
Locality
Bisbee, Cochise Co., Arizona, United States
Tagged
sulfide

A very large and heavy mass of black sub-metallic Stromeyerite with a thin tarnish of iridescent-blue Bornite.

Mining for Copper began in 1890 at the Copper Queen mine and soon Bisbee became the best producing Copper districts in Arizona. The mines at Bisbee were closed by 1975, but tours are still offered at the famous Copper Queen and the mining history has not been forgotton by the residents of Bisbee.

Stromeyerite

Formula
CuAgS 
Crystal System
Orthorhombic 
Crystal Habit
Granular, Massive, Pseudo Hexagonal 
Cleavage
None, None, None 
Luster
Metallic 
Color
blue gray, dark blue, dark steel gray, steel gray 
Streak
steel gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
2.5-3 

Data courtesy of Webmineral.

Collection
Phillips Collection

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