Alpeite

(repeating unit)Ca4Mn3+2Al2(Mn3+Mg)(SiO4)2(Si3O10)(V5+O4)(OH)6IMA symbolAptIdentificationColorBrownish redTenacityBrittleMohs scale hardness5.5-6LusterVitreous, SilkyStreakBeigeDiaphaneityTransparentSpecific gravity3.374

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

  1. ^ 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.
  2. ^ Alpeite Archived 2019-04-06 at the Wayback Machine on mindat.org


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