General Information:
Chemical Formula:
FeS2
Composition:
(Molecular Weight = 119.98 gm)
Iron 46.55 % Fe
Sulfur 53.45 % S
Empirical Formula:
Fe2+S2
Environment:
Sedimentary, hydrothermal, and secondary.
Locality:
Common world wide.
Name Origin:
Arabic or Moorish name for pyrites and similar material of uncertain origin.
Physical Properties:
Cleavage:
[010] Indistinct
Color:
bronze, light brass yellow, or tin white.
Density:
4.89
Diaphaniety:
Opaque
Habits:
Tabular - Form dimensions are thin in one direction., Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite)., Globular - Spherical, or nearly so, roun ded forms (e.g. wavellite).
Hardness:
6-6.5 - Orthoclase-Pyrite
Luminescence:
None.
Luster:
Metallic
Streak:
gray brownish black
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