Formula(Co, Fe)As2
OriginMackenheim, Bergstraße (Germany) 
Descriptionan etched massive piece of löllingite with safflorite 
Classification (Lapis) Sulfides
Crystal SystemOrthorhombic
Hardness4,5 – 5,0
ColourTin-white, readily tarnishes to dark gray; in polished section, white
StreakGrayish black
Luminescencenone observed 
LustreMetallic
Transparency (Opacity)Opaque
CleavageDistinct 
FractureUneven to conchoidal
Magnetism 
Geological SettingIn hydrothermal veins of moderate temperature and pressure.
Specific Gravity7,1 g/cm3
Kristallmodell







#© Mark Holtkamp