FormulaFeAs2
OriginSchacht 371, Alberoda (Germany) 
Description 
Classification (Lapis) Sulfides
Crystal SystemOrthorhmic
Hardness5,0 – 5,5
ColourWhite to gray
StreakPale gray to white 
Luminescencenone observed 
LustreMetaalic
Transparency (Opacity)Opaque
Cleavageperfect 
Fracturesub-conchoidal 
MagnetismNegative
Geological SettingHydrothermal veins 
Specific Gravity7,47 g/cm3
Kristallmodell







#© Mark Holtkamp