Dufrénoysite
A variety of Minerals
What is Dufrénoysite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Dufrénoysite 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.
Dufrénoysite Localities Map
See where Dufrénoysite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Dark lead-grey; dark red-brown (transmitted light)
- Hardness (Mohs)
- 3
- Density
- 5.61 g/cm³
- Streak
- Reddish brown, chocolate brown
Chemical Properties
- Chemical Formula
- Pb2As2S5
- Elements
- As, Pb, S
Also Known As
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Dufrénoysite FAQs
How do I identify Dufrénoysite?
Dufrénoysite can be identified by its hardness of 3 on the Mohs scale, Dark lead-grey; dark red-brown (transmitted light) color. Look for these key characteristics when examining specimens.
What color is Dufrénoysite?
Dufrénoysite typically appears in Dark lead-grey; dark red-brown (transmitted light). Color can vary depending on impurities and formation conditions.
How hard is Dufrénoysite?
Dufrénoysite has a hardness of 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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