Enargite is a copper arsenic sulfosalt mineral with formula Cu<sub>3</sub>AsS<sub>4</sub>. It takes its name from the Greek word 'distinct'. Enargite is a steel gray, blackish gray, to violet black mineral with metallic luster. It forms slender orthorhombic prisms as well as massive aggregates. It has a hardness of 3 and a specific gravity of 4.45.
Enargite is dimorph of the tetragonal luzonite.
References
External links
- Crystal structure of enargite