Bementite
A variety of Minerals
What is Bementite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Bementite 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.
Bementite Localities Map
See where Bementite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Brown, dark brown, golden brown, grayish-yellow
- Hardness (Mohs)
- 6
- Density
- 2.9 - 3.1 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- Mn7Si6O15(OH)8 Mn may be replaced by minor Fe, Mg and Zn.
- Elements
- H, Mn, O, Si
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Bementite FAQs
How do I identify Bementite?
Bementite can be identified by its hardness of 6 on the Mohs scale, Brown color. Look for these key characteristics when examining specimens.
What color is Bementite?
Bementite typically appears in Brown, dark brown, golden brown, grayish-yellow. Color can vary depending on impurities and formation conditions.
How hard is Bementite?
Bementite has a hardness of 6 on the Mohs scale. This gives it moderate hardness.
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