Min. [Ger., f. kupfer COPPER + nickel NICKEL.] = NICCOLITE. (Cf. copper-nickel s.v. COPPER sb.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.
