LithoCat

MineralGersdorffite
FormulaNiAsS
Crystal FormIsometric/Diploidal [2/m 3]
CleavagePerfect on {100}
ColorGray, grayish black, silver white, tin white
Density5.9 – 6.0 g/cm3
DiaphaneityOpaque
FractureIrregular/Uneven
Hardness5.5
LustreMetallic
StreakGrayish black
Dana 8 Class2.12.3.2
Strunz Class2/D.18-20
Mindatmindat.org
WebMineralWebMineral
ID232