| Mineral | Alunogen |
|---|---|
| Formula | Al2(SO4)3 • 17H2O |
| Crystal Form | Triclinic/Pinacoidal [1] |
| Cleavage | Perfect on {010}, Probable on {100} and {-3-13}. |
| Color | Crystals colorless, aggregates white, pale yellow or red from impurities |
| Density | 1.7 – 1.8 g/cm3 |
| Diaphaneity | Transparent |
| Hardness | 1.5 - 2.0 |
| Lustre | Vitreous, Silky |
| Streak | White |
| Dana 8 Class | 29.8.6.1 |
| Strunz Class | 6/C.08-70 |
| Mindat | mindat.org |
| WebMineral | WebMineral |
| ID | 309 |