niccolite

A nickel ore, essentially nickel arsenide, NiAs, found in America and Europe.

Native nickel arsenide, a mineral occurring usually massive, of a pale copper-red color and metallic luster. Also called copper-nickel and nickeline.

A mineral of a copper-red color and metallic luster; an arsenide of nickel; — called also coppernickel, kupfernickel.

A mineral, a form of nickel arsenide, NiAs, having a metallic lustre and copper-red colour, that is a minor ore of nickel.