Apuanite | |
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![]() Cubic apuanite crystal found at its type locality | |
General | |
Category | Mineral |
Formula (repeating unit) | Fe2+Fe3+4Sb3+4O12S |
IMA symbol | Apu |
Identification | |
Color | Black |
Mohs scale hardness | 4-5 |
Luster | Metallic |
Diaphaneity | Opaque |
Specific gravity | 5.33 |
Density | 5.33 g/cm3 (Measured) 5.22 g/cm3 (Calculated) |
Apuanite (IMA symbol: Apu[1]) is a rare iron antimony mineral with the chemical formula Fe2+Fe3+4Sb3+4O12S. Its type locality is the Province of Lucca, Italy.[2]