| Mineral | Marcasite |
|---|---|
| Formula | FeS2 |
| Crystal Form | Orthorhombic/Dipyramidal [2/m 2/m 2/m] |
| Cleavage | [010] Indistinct |
| Color | Bronze, Light brass yellow, Tin white |
| Density | 4.9 g/cm3 |
| Diaphaneity | Opaque |
| Fracture | Uneven |
| Hardness | 6.0 - 6.5 |
| Lustre | Metallic |
| Streak | Gray brownish black |
| Dana 8 Class | 2.12.2.1 |
| Strunz Class | II/D.20-10 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 107 |