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Jordanite

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 Lengenbach Quarry in the Binn Valley, Wallis, Switzerland.[1]

References

1. ^ a b c Mindat information page for Jordanite

Minerals Images

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