Luzonite | |
Chemical Formula |
Cu3AsS4 |
Species |
Sulfides |
Crystal System |
Tetragonal |
Mohs Scale |
3 |
Specific Gravity |
4.47 |
Color |
Deep pinkish-brown |
Streak |
Black. |
Luster |
Metallic |
Diaphaneity |
Opaque |
Cleavage |
Distinct/GoodGood on , distinct on . |
Fracture |
Irregular/Uneven, Conchoidal |
Crystal Habit:Usually massively crystalline to granular, crystals rare and small, usually equant. | |
Geological Setting:A primary mineral of copper deposits, such as at Sierra de Famatina, Argentina. |