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Stromeyerite with Calcite in diabase

#RW50114

Stromeyerite with Calcite in diabase

#RW50114
Availability
Sold
Size
11 x 9.5 x 3.5 cm - Cabinet 
Formula
CuAgS (RRUFF)
Locality
Siscoe mine, Nicol Twp., Cobalt-Gowganda, Ontario, Canada
Tagged
ore mineral , sulfide , copper , silver

Stromeyerite is an important ore of both copper and silver. The Stromeyerite in this specimen is disseminated throughout the mass and 1mm blackish grains and one 1.3cm grain tarnished a dark blue. It is in Diabase with Calcite and minor Chalcopyrite.

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
Robert J. Waidler Collection

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