Fersmite
A variety of Euxenite Group
What is Fersmite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Fersmite 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.
Fersmite Localities Map
See where Fersmite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Black, dark brown, lemon-yellow to yellow-brown
- Hardness (Mohs)
- 4 - 4.5
- Density
- 4.78 g/cm³
- Streak
- Grayish brown
Chemical Properties
- Chemical Formula
- (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
- Elements
- Ca, Ce, F, H, Na, Nb, O, Ta, Ti
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Fersmite FAQs
How do I identify Fersmite?
Fersmite can be identified by its hardness of 4 - 4.5 on the Mohs scale, Black color. Look for these key characteristics when examining specimens.
What color is Fersmite?
Fersmite typically appears in Black, dark brown, lemon-yellow to yellow-brown. Color can vary depending on impurities and formation conditions.
How hard is Fersmite?
Fersmite has a hardness of 4 - 4.5 on the Mohs scale. This gives it moderate hardness.