What is "zinkenite"

Zinkenite \Zink"en*ite\ (-en*[imac]t), n. [From Zinken, director at one time of the Hanoverian mines.] (Min.) A steel-gray metallic mineral, a sulphide of antimony and lead.

n. (context mineralogy English) A grey mineral with hexagonal crystals, lead₉antimony₂₂sulfur₄₂.

n. a steel gray metallic mineral (a sulphide of lead and antimony)

Zinkenite is a steel-gray metallic sulfosalt mineral composed of lead antimony sulfide Pb Sb S. Zinkenite occurs as acicular needle-like crystals.

It was first described in 1826 for an occurrence in the Harz Mountains, Saxony-Anhalt, Germany and named after its discoverer, German mineralogist and mining geologist, Johann Karl Ludwig Zinken (1790–1862).