| Jordanite | |
| Category: | Sulfosalt minerals |
| Imasymbol: | Jrd[1] |
| Strunz: | 2.JB.30a |
| System: | Monoclinic |
| Class: | Prismatic (2/m) (same H-M symbol) |
| Symmetry: | P21/m |
| Colour: | Lead-grey |
| Cleavage: | Perfect |
| Fracture: | Conchoidal |
| Tenacity: | Brittle |
| Mohs: | 3 |
| Lustre: | Metallic |
| Pleochroism: | Visible |
| Streak: | Black |
| Density: | 6.4 |
Jordanite is a sulfosalt mineral with chemical formula in the monoclinic crystal system,[2] 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.