| Mineral | Franklinite |
|---|---|
| Formula | Zn2+Fe3+2O4 |
| Crystal Form | Isometric/Hextetrahedral [4 3m] |
| Cleavage | None |
| Color | Black |
| Density | 5.1 – 5.2 g/cm3 |
| Diaphaneity | Opaque |
| Fracture | Irregular, Conchoidal |
| Hardness | 5.5 - 6.0 |
| Lustre | Metallic, Sub-metallic |
| Streak | Reddish brown to Black |
| Dana 8 Class | 7.2.2.4 |
| Strunz Class | IV/B.02-60 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 152 |