ALL meanings of bornite
born·ite
B b - noun bornite a mineral consisting of a sulphide of copper and iron that tarnishes to purple or dark red. It occurs in copper deposits. Formula: Cu5FeS4 3
- noun bornite a reddish-brown, soft, brittle, cubic mineral, copper iron sulfide, Cu5FeS4, an ore of copper that tarnishes to a dark purplish color when it is fractured 3
- noun bornite a common mineral and important ore of copper, copper iron sulfide, Cu 5 FeS 4 , occurring in masses, of brownish color when first exposed to the air; peacock ore. 1
- noun bornite (mineralogy) A reddish mineral that tarnishes on exposure to air; it is a mixed sulfide of iron and copper with the chemical formula Cu5FeS and is an important ore of copper. 0