Alpeite
A variety of Minerals
What is Alpeite?
Alpeite is a calcium manganese magnesium silicate mineral with the chemical formula Ca4Mn2Al2(MnMg)(SiO4)2(Si3O10)(VO4)(OH)6. It is named for its type locality, the Monte Alpe mine in Italy.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Alpeite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Quick Facts
Physical Properties
- Color
- Brownish red
- Hardness (Mohs)
- 5.5 - 6
- Rock tumbling
- With care
- Density
- 3.374 g/cm³
- Streak
- Beige
Chemical Properties
- Chemical Formula
- Ca4Mn3+2Al2(Mn3+Mg)(SiO4)2(Si3O10)(V5+O4)(OH)6
- Elements
- Al, Ca, H, Mg, Mn, O, Si, V
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Alpeite FAQs
How do I identify Alpeite?
Alpeite can be identified by its hardness of 5.5 - 6 on the Mohs scale, Brownish red color. Look for these key characteristics when examining specimens.
What color is Alpeite?
Alpeite typically appears in Brownish red. Color can vary depending on impurities and formation conditions.
How hard is Alpeite?
Alpeite has a hardness of 5.5 - 6 on the Mohs scale. This gives it moderate hardness.
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