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bornite Syllabification: born·ite
Pronunciation: /ˈbôrnīt/

Definition of bornite in English:


A brittle reddish-brown crystalline mineral with an iridescent purple tarnish, consisting of a sulfide of copper and iron.
Example sentences
  • When it rises through fractures in the surrounding solid rocks, these metals are precipitated, normally as the minerals chalcopyrite, bornite, and molybdenite.
  • Iron and copper sulfides of this region are predominately pyrite, pyrrhotite, chalcopyrite, arsenopyrite, bornite, and marcasite.
  • We have not seen any good crystals of bornite from Gilman.


Early 19th century: from the name of Ignatius von Born (1742–91), Austrian mineralogist, + -ite1.

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