Montbrayite
A variety of Minerals
What is Montbrayite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Montbrayite 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.
Applies to all rocks & minerals.
Quick Facts
Physical Properties
- Hardness (Mohs)
- 2.5
- Rock tumbling
- Not recommended
Chemical Properties
- Chemical Formula
- (Au,Ag,Sb,Bi,Pb)23(Te,Sb,Bi,Pb)38
- Elements
- Ag, Au, Bi, Pb, Sb, Te
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Montbrayite FAQs
How do I identify Montbrayite?
Montbrayite can be identified by its hardness of 2.5 on the Mohs scale. Look for these key characteristics when examining specimens.
How hard is Montbrayite?
Montbrayite has a hardness of 2.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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