Bornite \Bor"nite\, n. [Named after Von Born, a mineralogist.] (Min.) A valuable ore of copper, containing copper, iron, and sulphur; -- also called {purple copper ore} (or {erubescite}), in allusion to the colors shown upon the slightly tarnished surface. [1913 Webster]
Erubescite \Er`u*bes"cite\, n. (Min.) See {Bornite}. [1913 Webster]