‖ kupfernickel Min.
(ˈkʊpfərˌnɪk(ə)l)
[Ger., f. kupfer copper + nickel nickel.]
= niccolite. (Cf. copper-nickel s.v. copper n.1 12.)
1796 Kirwan Elem. Min. (ed. 2) II. 271 Found with Native Bismuth, Kupfernickel and Cobaltic efflorescences. 1812 Sir H. Davy Chem. Philos. 421 Nickel exists in an ore called kupfer-nickel, combined chiefly with sulphur. 1879 Cassell's Techn. Educ. IV. 226/2 Kupfernickel, which is a compound of this metal [nickel] with arsenic. |