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tiemannite

American  
[tee-muh-nahyt] / ˈti məˌnaɪt /

noun

  1. a mineral, mercuric selenide, HgSe, occurring in the form of a compact mass of gray crystals.


tiemannite British  
/ ˈtiːməˌnaɪt /

noun

  1. a grey mineral consisting of mercury selenide. Formula: HgSe

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of tiemannite

< German Tiemannit (1855), after W. Tiemann, German scientist who found it; -ite 1