Alpeite
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| Alpeite | |
|---|---|
 Alpeite crystals | |
| General | |
| Category | Mineral |
| Formula (repeating unit) | Ca4Mn3+2Al2(Mn3+Mg)(SiO4)2(Si3O10)(V5+O4)(OH)6 |
| IMA symbol | Apt |
| Identification | |
| Color | Brownish red |
| Tenacity | Brittle |
| Mohs scale hardness | 5.5-6 |
| Luster | Vitreous, Silky |
| Streak | Beige |
| Diaphaneity | Transparent |
| Specific gravity | 3.374 |
Alpeite (IMA symbol: Apt[1]) is a calcium manganese magnesium silicate mineral with the chemical formula Ca4Mn3+2Al2(Mn3+Mg)(SiO4)2(Si3O10)(V5+O4)(OH)6. It is named for its type locality, the Monte Alpe mine in Italy.[2]
References
[edit]- ^ Warr, L.N. (2021). "IMA-CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ Alpeite Archived 2019-04-06 at the Wayback Machine on mindat.org
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