General Information:
Chemical Formula:
CuSbS2
Composition:
(Molecular Weight = 249.43 gm)
Copper 25.48 % Cu
Antimony 48.81 % Sb
Sulfur 25.71 % S
Empirical Formula:
CuSbS2
Locality:
Wolfsberg, in the Harz Mountains.
Name Origin:
From the Greek chalkos - "copper" and stibi - "antimony."
Physical Properties:
Cleavage:
[001] Good
Color:
lead gray, blue gray, or dark gray.
Density:
4.75 - 5, Average = 4.87
Diaphaniety:
Opaque
Habits:
Euhedral Crystals - Occurs as well-formed crystals showing good external form., Massive - Granular - Common texture observed in granite and other igneous rock.,
Hardness:
3.5 - Copper Penny
Luminescence:
Non-fluorescent.
Luster:
Metallic
Streak:
black
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