LithoCat

MineralTiemannite
FormulaHgSe  
Crystal FormIsometric/Hextetrahedral [4 3m]
ColorSteel-gray to black
Density8.2 – 8.5 g/cm3
DiaphaneityOpaque
FractureIrregular/Uneven, Conchoidal
Hardness2.5
LustreOpaque
StreakBlack
Type Loc.St Lorenz Mine, Clausthal-Zellerfeld, Goslar Dist., Lower Saxony, Germany
Dana 8 Class2.8.2.4
Strunz Class2.CB.05a
Mindatmindat.org
WebMineralWebMineral
ID515