| Mineral | Pyrrhotite |
|---|---|
| Formula | Fe7S8 |
| Crystal Form | Monoclinic/Prismatic [2/m] |
| Cleavage | None |
| Color | Bronze brown, bronze red, or dark brown |
| Density | 4.6 – 4.7 g/cm3 |
| Diaphaneity | Opaque |
| Fracture | Sub-conchoidal |
| Hardness | 3.5 - 4.0 |
| Lustre | Metallic |
| Streak | Dark grayish black |
| Dana 8 Class | 2.8.10.1 |
| Strunz Class | II/C.19-20 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 170 |