Sillimanite
Properties
| Formula | Al2SiO5 |
| Abbreviation | Sil |
| Classifications | Aluminium silicate, Al2SiO5, Sillimanite (subgroup), Al2SiO5 (group) |
| IMA Status | Grandfathered (pre-IMA), 1824 |
| Search other databases | webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database |
| Related materials | Andalusite, Kyanite |
| Crystal symmetry | Orthorhombic, Point group mmm |
| Tags | Mineral, Aluminosilicate |
Composition
| Element | Atoms |
|---|---|
| O | 5 |
| Si | 1 |
| Al | 2 |
| Total: | 8 |