bornite Min.
(ˈbɔənaɪt)
[ad. G. bornit (1845), f. the name of Ignatius von Born, an Austrian mineralogist (1742–91): see -ite1.]
A brittle reddish-brown sulphide of copper and iron; also called purple copper ore or erubescite.
| 1854 Dana Syst. Min. (ed. 4) 38 Erubescite. Bornite, Haid. Variegated Copper. 1896 Times 21 Aug. 10/3 The great bornite mine at Nelson [British Columbia]. 1946 J. R. Partington Gen. & Inorg. Chem. xiii. 325 The commonest ores of copper are sulphides of copper and iron: chalcopyrite..and bornite or erubescite or variegated copper ore. 1965 G. J. Williams Econ. Geol. N.Z. viii. 98/2 The Bonanza section of Maria mine—where covellite was reported with a little bornite. |