bornite
nounEtymology From Born + -ite, named after Austrian mineralogist Ignaz von Born.
1
Chemistry, Geography, Geology, Mineralogy, Natural sciences, Physical sciences 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.
- Synonyms
- erubescite, peacock ore, peacock copper
- Derived terms
- bornitic