General Information:
Chemical Formula:
(Ni,Co)As3-x
Composition:
(Molecular Weight = 246.05 gm)
Cobalt 5.99 % Co
Nickel 17.89 % Ni
Arsenic 76.12 % As
Empirical Formula:
Ni0.75Co0.25As2.5
Locality:
SI
Physical Properties:
Color:
gray, tin white, or gray.
Density:
6.5
Diaphaniety:
Opaque
Habits:
Massive - Uniformly indistinguishable crystals forming large masses., Crystalline - Fine - Occurs as well-formed fine sized crystals., Granular - Generally occurs as anhedral to subhe dral crystals in matrix.
Hardness:
5.5-6 - Knife Blade-Orthoclase
Luminescence:
Non-fluorescent.
Luster:
Metallic
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