Foordite
A variety of Foordite Group
What is Foordite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Foordite 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.
Foordite Localities Map
See where Foordite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Dark brown, Yellowish brown, olive brown.
- Hardness (Mohs)
- 6
- Density
- 6.66 g/cm³
- Streak
- Yellowish white
Chemical Properties
- Chemical Formula
- Sn2+(Nb,Ta)2O6
- Elements
- Nb, O, Sn, Ta
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Foordite FAQs
How do I identify Foordite?
Foordite can be identified by its hardness of 6 on the Mohs scale, Dark brown color. Look for these key characteristics when examining specimens.
What color is Foordite?
Foordite typically appears in Dark brown, Yellowish brown, olive brown.. Color can vary depending on impurities and formation conditions.
How hard is Foordite?
Foordite has a hardness of 6 on the Mohs scale. This gives it moderate hardness.