{{Infobox mineral | name = Alpeite | boxwidth = | boxbgcolor = | image = Alpeite.jpg | imagesize = | alt = | caption = Alpeite crystals | struct image = | struct caption = | struct imagesize = | struct2 image = | struct2 caption = | struct2 imagesize= | SMILES = | Jmol = | category = | formula = Ca{{sub|4}}Mn{{sup|3+}}{{sub|2}}Al{{sub|2}}(Mn{{sup|3+}}Mg)(SiO{{sub|4}}){{sub|2}}(Si{{sub|3}}O{{sub|10}})(V{{sup|5+}}O{{sub|4}})(OH){{sub|6}} | IMAsymbol = Apt | molweight = | strunz = | dana = | system = | class = | symmetry = | unit cell = | color = Brownish red | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = Brittle | toughness = | mohs = 5.5-6 | luster = Vitreous, Silky | streak = Beige | diaphaneity = Transparent | gravity = 3.374 | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | Curie temp = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = | var1 = | var1text = | var2 = | var2text = | var3 = | var3text = | var4 = | var4text = | var5 = | var5text = | var6 = | var6text = }} '''Alpeite''' (IMA symbol: Apt<ref>{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA-CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3 |pages=291–320|doi=10.1180/mgm.2021.43 |bibcode=2021MinM...85..291W |s2cid=235729616 |doi-access=free}}</ref>) is a calcium manganese magnesium silicate mineral with the chemical formula Ca{{sub|4}}Mn{{sup|3+}}{{sub|2}}Al{{sub|2}}(Mn{{sup|3+}}Mg)(SiO{{sub|4}}){{sub|2}}(Si{{sub|3}}O{{sub|10}})(V{{sup|5+}}O{{sub|4}})(OH){{sub|6}}. It is named for its type locality, the Monte Alpe mine in Italy.<ref>[https://mindat.org/min-50779.html Alpeite] {{Webarchive|url=https://web.archive.org/web/20190406011900/https://www.mindat.org/min-50779.html |date=2019-04-06 }} on mindat.org</ref>
== References == {{Reflist}}
Category:Calcium minerals Category:Manganese(III) minerals Category:Magnesium minerals Category:Sorosilicates
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