Ferdowsiite
A variety of Minerals
What is Ferdowsiite?
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Ferdowsiite 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.
Quick Facts
Physical Properties
- Color
- Greyish black
- Hardness (Mohs)
- 2.5 - 3
- Rock tumbling
- Not recommended
- Density
- 5.3 g/cm³
- Streak
- Dark grey
Chemical Properties
- Chemical Formula
- Ag8(Sb5As3)S16 A Pb-bearing variety was also described (Makovicky et al., 2013).
- Elements
- Ag, As, S, Sb
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Ferdowsiite FAQs
How do I identify Ferdowsiite?
Ferdowsiite can be identified by its hardness of 2.5 - 3 on the Mohs scale, Greyish black color. Look for these key characteristics when examining specimens.
What color is Ferdowsiite?
Ferdowsiite typically appears in Greyish black. Color can vary depending on impurities and formation conditions.
How hard is Ferdowsiite?
Ferdowsiite has a hardness of 2.5 - 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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