General Information:
Chemical Formula:NiSbS
Composition:(Molecular Weight = 212.51 gm)Nickel 27.62 %
NiAntimony 57.29 %
SbSulfur 15.09 %
S Empirical Formula: NiSbS
Name Origin:Named after the German chemist and mineralogist, J. Ch. Ullmann (1771-1821).
Physical Properties: Cleavage:[100] Good, [010] Good, [001] Good
Color:steel gray, silver white, or tin white.
Density:6.65
Diaphaniety:Opaque
Habits:Massive - Granular - Common texture observed in granite and other igneous rock., Massive - Uniformly indistinguishable crystals forming large masses.,
Hardness:5.5 - Knife Blade
Luster:Metallic
Streak:grayish black
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