Castellaroite
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| Castellaroite | |
|---|---|
 A close up picture of the mineral | |
| General | |
| Category | Minerals |
| Formula | Mn3(AsO4)2•4H2O |
| IMA symbol | Ctr |
| Identification | |
| Color | Colorless |
| Luster | Vitreous, Silky |
| Specific gravity | 3.14 |
Castellaroite is a rare arsenate mineral with formula Mn3(AsO4)2•4H2O. It is related to the phosphate mineral metaswitzerite. Castellaroite is monoclinic, with space group P21/n. The other natural manganese arsenate hydrate is manganohörnesite, which is an octahydrate.[1][2][3]
