Occurs in Pinal County.
Chemical Formula: Cu12VAs3S16
Specific Gravity: 4.8-5.2
Hardness: 4.5-5
Colusite is a copper vanadium arsenic sulfide mineral that forms as metallic gray to black crystals. It is often found in hydrothermal veins and is a rare mineral.
Next Pinal County mineral: Conichalcite