| Mineral | Ianthinite |
|---|---|
| Formula | U4+(UO2)5O7 • 10(H2O) |
| Crystal Form | Orthorhombic/Pyramidal [mm2] |
| Cleavage | Perfect on {001} |
| Color | Violet-black, dark violet |
| Density | 5.2 g/cm3 |
| Diaphaneity | Transparent, Translucent |
| Fracture | Uneven |
| Hardness | 2.0 - 3.0 |
| Lustre | Sub-metallic |
| Streak | Brown, violet |
| Dana 8 Class | 5.6.1.1 |
| Strunz Class | 4/H.01-10 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 268 |