tiemannite

noun
tie·​mann·​ite | \ ˈtēməˌnīt\
plural -s

Definition of tiemannite

: a mineral HgSe that is a native mercuric selenide and occurs commonly in dark gray or nearly black masses of metallic luster (specific gravity 8.2–8.5)

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History and Etymology for tiemannite

German tiemannit, from W. Tiemann, 19th century German scientist who discovered it + German -it -ite

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