Ferrocarpholite
A variety of Carpholite Group
What is Ferrocarpholite?
Carpholite is a manganese silicate mineral with formula MnAl2Si2O6(OH)4. It occurs as yellow clusters of slender prisms or needles. It crystallizes in the orthorhombic system. The carpholite group includes ferrocarpholite, magnesiocarpholite, vanadiocarpholite, and potassiccarpholite.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Ferrocarpholite 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
- Hardness (Mohs)
- 5.5
- Rock tumbling
- With care
Chemical Properties
- Chemical Formula
- (Fe2+,Mg)Al2(Si2O6)(OH)4
- Elements
- Al, Fe, H, O, Si
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Ferrocarpholite FAQs
How do I identify Ferrocarpholite?
Ferrocarpholite can be identified by its hardness of 5.5 on the Mohs scale. Look for these key characteristics when examining specimens.
How hard is Ferrocarpholite?
Ferrocarpholite has a hardness of 5.5 on the Mohs scale. This gives it moderate hardness.