tiemannite

== English == === Etymology === From Tiemann +‎ -ite, after Johann Carl Wilhelm Tiemann (1848–1899). === Noun === tiemannite (countable and uncountable, plural tiemannites) (mineralogy) An isometric-hextetrahedral grayish white mineral containing mercury and selenium; mercury selenide, chemical formula HgSe. ==== References ==== David Barthelmy (1997–2026), “Tiemannite”, in Webmineral Mineralogy Database.