Pyrrhotite | |
Chemical Formula |
Fe1-xS (x = 0 to 0.2) |
Species |
Sulfides |
Crystal System |
Monoclinic |
Mohs Scale |
3-4 |
Specific Gravity |
4.58-4.65 |
Color |
Bronze, dark brown |
Streak |
Dark grey – black |
Luster |
Metallic |
Refractive Index |
Opaque |
Diaphaneity |
Opaque |
Cleavage |
None Observed |
Fracture |
Sub-Conchoidal |
Crystal Habit:Tabular or prismatic in hexagonal prisms; massive to granular |