niccolite
noun
nic·co·lite
ˈnikəˌlīt
plural -s
: a mineral NiAs of a pale copper red color and metallic luster usually occurring massive and composed essentially of a nickel arsenide (hardness 5–5.5, specific gravity 7.33–7.67)
Word History
Etymology
New Latin niccolum nickel (probably from Swedish nickel) + English -ite