General Information:
Chemical Formula:
Co++Co+++2S4
Composition:
(Molecular Weight = 305.06 gm)
Cobalt 57.95 % Co
Sulfur 42.05 % S
Empirical Formula:
CoCo2S4
Locality:
MINERAL HILL
Name Origin:
Named after the Swedish botanist, C. Linne (1707-1778).
Physical Properties:
Cleavage:
[100] Imperfect
Color:
violet gray, copper red, light gray, or steel gray.
Density:
4.8
Diaphaniety:
Opaque
Habits:
Crystalline - Fine - Occurs as well-formed fine sized crystals., Encrustations - Forms crust-like aggregates on matrix., Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Hardness:
4.5-5.5
Luminescence:
None.
Luster:
Metallic
Streak:
grayish black
More details...