Gruzdevite
A variety of Minerals
What is Gruzdevite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Gruzdevite 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.
Gruzdevite Localities Map
See where Gruzdevite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- grey-black
- Hardness (Mohs)
- 4 - 4.5
- Density
- 5.88 g/cm³
Chemical Properties
- Chemical Formula
- Cu6Hg3Sb4S12
- Elements
- Cu, Hg, S, Sb

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Gruzdevite FAQs
How do I identify Gruzdevite?
Gruzdevite can be identified by its hardness of 4 - 4.5 on the Mohs scale, grey-black color. Look for these key characteristics when examining specimens.
What color is Gruzdevite?
Gruzdevite typically appears in grey-black. Color can vary depending on impurities and formation conditions.
How hard is Gruzdevite?
Gruzdevite has a hardness of 4 - 4.5 on the Mohs scale. This gives it moderate hardness.


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