Bornite
Pronunciation : Bor"nite
Part of Speech : n.
Etymology : [Named after Von Born, a mineralogist.] (Min.)
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913