CoAs3Cubic
Smaltite
CoAs3
SulfidesChemical FormulaCoAs3
Crystal SystemCubic
Mohs Hardness5.5
Specific Gravity6.5
ColorTin white to silver
LusterMetallic
StreakBlackish
CleavageNone
FractureUneven
Occurrence
Found in hydrothermal veins. Ore of cobalt and nickel. Also called skutterudite.