General Information:
Chemical Formula:(Ni,Co)As3-x
Composition:(Molecular Weight = 246.05 gm)Cobalt 5.99 %
CoNickel 17.89 %
NiArsenic 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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