a copper-coloured mineral consisting of nickel arsenide in hexagonal crystalline form, occurring associated with copper and silver ores: a source of nickel. Formula: NiAs
Also called: nickeline
Word origin
C19: from New Latin niccolumnickel + -ite1
niccolite in American English
(ˈnɪkəˌlaɪt)
noun
a hard, reddish, hexagonal mineral, NiAs, an ore of nickel; nickel arsenide
Word origin
< ModL niccolum (< Swed nickel: see nickel) + -ite1