Jordanite
A variety of Minerals
What is Jordanite?
Jordanite is a sulfosalt mineral with chemical formula Pb14(As,Sb)6S23 in the monoclinic crystal system, named after the German scientist H. Jordan (1808–1887) who discovered it in 1864. Lead-grey in colour (frequently displaying an iridescent tarnish), its streak is black and its lustre is metallic. Jordanite has a hardness of 3 on Mohs scale, has a density of approximately 6.4, and a conchoidal fracture. The type locality is the Lengenbach Quarry in the Binn Valley, Wallis, Switzerland.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Jordanite 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.
Jordanite Localities Map
See where Jordanite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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Quick Facts
Physical Properties
- Color
- Lead-gray, frequent iridescent tarnish
- Hardness (Mohs)
- 3
- Density
- 6.33 - 6.43 g/cm³
- Streak
- Black
Chemical Properties
- Chemical Formula
- Pb14(As,Sb)6S23
- Elements
- As, Pb, S, Sb
Also Known As
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Jordanite FAQs
How do I identify Jordanite?
Jordanite can be identified by its hardness of 3 on the Mohs scale, Lead-gray color. Look for these key characteristics when examining specimens.
What color is Jordanite?
Jordanite typically appears in Lead-gray, frequent iridescent tarnish. Color can vary depending on impurities and formation conditions.
How hard is Jordanite?
Jordanite has a hardness of 3 on the Mohs scale. This makes it a soft mineral that can be scratched easily.
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