Jordanite
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| Jordanite | |
|---|---|
| Category | Sulfosalt minerals, Lead minerals |
| Chemical formula | Pb14(As,Sb)6S23 |
| Identification | |
| Color | Lead-grey |
| Crystal system | Monoclinic |
| Cleavage | Perfect |
| Fracture | Conchoidal |
| Tenacity | Brittle |
| Mohs Scale hardness | 3 |
| Luster | Metallic |
| Pleochroism | Visible |
| Streak | Black |
| Density | 6.4 |
Jordanite is a sulfosalt mineral with chemical formula Pb14(As,Sb)6S23 in the monoclinic crystal system,[1] named after the German scientist Dr 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.[1]
The type locality is the Legenbach Quarry in the Binn Valley, Wallis, Switzerland.[1]
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