General Information:
Chemical Formula:
NiAsS
Composition:
(Molecular Weight = 165.68 gm)
Nickel 35.42 % Ni
Arsenic 45.22 % As
Sulfur 19.35 % S
Empirical Formula:
NiAsS
Locality:
Sudbury
Name Origin:
Named after Herr von Gersdorff, owner of Schladming Mine, Austria.
Physical Properties:
Cleavage:
[100] Good, [010] Good, [001] Good
Color:
gray, grayish black, silver white, or tin white.
Density:
5.9 - 6.33, Average = 6.11
Diaphaniety:
Opaque
Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., Euhedral Crystals - Occurs as well-formed crystals showing good external form., Tabular - Form dimensi ons are thin in one direction.
Hardness:
5.5 - Knife Blade
Luminescence:
None.
Luster:
Metallic
Streak:
grayish black
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