General Information:
Chemical Formula:
Cu1.4S
Composition:
(Molecular Weight = 121.03 gm)
Copper 73.51 % Cu
Sulfur 26.49 % S
Empirical Formula:
Cu1.4S
Environment:
Red bed copper deposit.
IMA Status:
Approved IMA 1978
Locality:
Spionkop Creek, AB, Canada.
Name Origin:
Named for the locality.
Physical Properties:
Color:
black or blue.
Density:
5.13
Diaphaniety:
Opaque
Habits:
Tarnishes - Freshly fractured surfaces form a surface oxidation film, ,
Hardness:
2.5-3 - Finger Nail-Calcite
Luster:
Metallic
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