Rosenbergite
Rosenbergite is a mineral with the chemical formula AlF3·3H2O. It is a trihydrate of aluminium fluoride.
| Rosenbergite | |
|---|---|
 | |
| General | |
| Category | Mineral |
| Formula (repeating unit) | AlF3·3H2O |
| Crystal system | Tetragonal |
| Crystal class | 4 |
| Space group | P4/n (no. 85) |
| Identification | |
| Mohs scale hardness | 3–3.5 |
It is colorless. Its crystals are tetragonal to dipyramidal. It is named after Philip E. Rosenberg, a United States geochemist. It is found in the Celtine Mine in Tuscany, Italy and Mount Erebus, Ross Island, Antarctica. It is not radioactive. Rosenbergite is rated 3–3.5 on the Mohs Scale.
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