Gaudefroyite
A variety of Minerals
What is Gaudefroyite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Gaudefroyite 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.
Gaudefroyite Localities Map
See where Gaudefroyite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Hardness (Mohs)
- 6
- Streak
- Brown
Chemical Properties
- Chemical Formula
- Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3
- Elements
- B, C, Ca, Mn, O
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Gaudefroyite FAQs
How do I identify Gaudefroyite?
Gaudefroyite can be identified by its hardness of 6 on the Mohs scale. Look for these key characteristics when examining specimens.
How hard is Gaudefroyite?
Gaudefroyite has a hardness of 6 on the Mohs scale. This gives it moderate hardness.
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