Bornite

n.

1.

(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.

Noun

1.

bornite - a mineral consisting of sulfides of copper and iron that is found in copper deposits Synonyms: peacock ore

atomic number 29, copper, Cu, mineral, peacock ore