ZINKENITE

zinkenite

(noun) a steel grey metallic mineral (a sulphide of lead and antimony)

Source: WordNet® 3.1

Etymology

After German mineralogist J. K. L. Zinken (1798-1862), named in 1862.

Noun

zinkenite (usually uncountable, plural zinkenites)

(mineral) A grey mineral with hexagonal crystals, Pb₉Sb₂₂S₄₂.

Source: Wiktionary

Zink"en*ite, n. Etym: [From Zinken, director at one time of the Hanoverian mines.] (Min.)

Definition: A steel-gray metallic mineral, a sulphide of antimony and lead.

Source: Webster’s Unabridged Dictionary 1913 Edition

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