Reddish brassy grains of Maucherite (second photo) with goldish, brassy grains of Cubanite disseminated in serpentine matrix with brassy Nickeline. This is a rich mass with a prominent slickenside. Specimans from the Mackinaw mine are seldom seen on the market. Old Minerals Unlimited specimen with tag.
Maucherite
Formula
Ni11As8
Crystal System
Tetragonal
Crystal Habit
Tabular, Striated
Cleavage
None, None, None
Luster
Metallic
Color
grayish copper red, reddish silver white, bronze yellow, reddish white