General Information:
Chemical Formula:
Fe++Fe+++2S4
Composition:
(Molecular Weight = 239.96 gm)
Iron 46.55 % Fe
Sulfur 53.45 % S
Empirical Formula:
Fe2+Fe3+S4
Environment:
In part, a biomineral
IMA Status:
Approved IMA 1964
Locality:
Kramer - Four Corners area (Drill cores), San Bernardino Co. California.
Physical Properties:
Cleavage:
None
Color:
blue, blue black, bronze, or pink.
Density:
4.049
Diaphaniety:
Opaque
Habits:
Microscopic Crystals - Crystals visible only with microscopes., ,
Hardness:
4-4.5 - Between Fluorite and Apatite
Luster:
Metallic
Streak:
black
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