LithoCat

MineralArsenopyrite
FormulaFeAsS
Crystal FormMonoclinic/Prismatic [2/m]
CleavageDistinct/Good. Distinct on {001}; {010} in traces
ColorSilver-white to Steel-grey
Density6.1 g/cm3
DiaphaneityOpaque
FractureIrregular/Uneven
Hardness5.5 - 6.0
LustreMetallic
StreakGrey-black
Dana 8 Class2.12.4.1
Strunz ClassII/D.22-10
Mindatmindat.org
WebMineralWebMineral
ID113