Rosenbergite
| Rosenbergite | |
|---|---|
 Acicular rosenbergite crystals from Le Cetine Mine, Siena, Tuscany, Italy | |
| General | |
| Category | Mineral |
| Formula (repeating unit) | AlF3·3H2O |
| IMA symbol | Ros[1] |
| Crystal system | Tetragonal |
| Crystal class | 4 |
| Space group | P4/n (no. 85) |
| Identification | |
| Mohs scale hardness | 3–3.5 |
Rosenbergite is a mineral with the chemical formula AlF3·3H2O. It is a trihydrate of aluminium fluoride.
It is colorless. Its crystals are tetragonal to . It is named after , a United States geochemist. It is found in the in Tuscany, Italy and Mount Erebus, Ross Island, Antarctica. It is not radioactive. Rosenbergite is rated 3–3.5 on the Mohs Scale.
References[]
- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85: 291–320.
External links[]
Categories:
- Aluminium minerals
- Fluorine minerals
- Tetragonal minerals
- Minerals in space group 85
- Halide mineral stubs