[ bawr-nahyt ]
/ ˈbɔr naɪt /


a common mineral and important ore of copper, copper iron sulfide, Cu5FeS4, occurring in masses, of brownish color when first exposed to the air; peacock ore.

Nearby words

  1. borneo,
  2. borneol,
  3. bornholm,
  4. bornholm disease,
  5. bornholm disease virus,
  6. bornitic,
  7. borno,
  8. bornu,
  9. bornyl acetate,
  10. bornyl formate

Origin of bornite

1850–55; named after I. von Born (1742–91), Austrian mineralogist; see -ite1

Related formsbor·nit·ic [bawr-nit-ik] /bɔrˈnɪt ɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for bornite

  • Much of the copper of commerce is made from chalcopyrite and bornite, and these ores are more difficult to work.

British Dictionary definitions for bornite


/ (ˈbɔːnaɪt) /


a mineral consisting of a sulphide of copper and iron that tarnishes to purple or dark red. It occurs in copper deposits. Formula: Cu 5 FeS 4Also called: peacock ore

Word Origin for bornite

C19: named after I. von Born (1742–91), Austrian mineralogist; see -ite 1

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012