Enargite | |
Chemical Formula |
Cu3AsS4 |
Species |
Sulfides |
Crystal System |
Orthorhombic |
Mohs Scale |
3 |
Specific Gravity |
4.4-4.5 |
Color |
Grayish black to iron black; gray to pale pink-brown, deep red internal re?ections in polished section |
Streak |
Black |
Luster |
Metallic |
Diaphaneity |
Opaque |
Cleavage |
PerfectPerfect on , imperfect on and , indistinct . |
Fracture |
Irregular/Uneven |
Crystal Habit:Tabular to prismatic crystals, striated parallel ; massive | |
Geological Setting:A mineral of moderate temperature vein and replacement deposits. |