General Information:
Chemical Formula:
NiSbS
Composition:
(Molecular Weight = 212.51 gm)
Nickel 27.62 % Ni
Antimony 57.29 % Sb
Sulfur 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
More details...