Digenite is a black to dark blue opaque mineral that crystallizes with a trigonal–hexagonal scalenohedral structure.

It is typically associated with and often intergrown with chalcocite, covellite, djurleite, bornite, chalcopyrite and pyrite.

Natural digenite always contains a small amount of iron and is considered to be stable only in the Cu-Fe-S system.

The name is from the Greek digenus meaning of two origins in reference to its close resemblance with chalcocite and covellite.

[8] High digenite is stable above 73 °C, with space group Fm3m and unit cell parameters a = 5.57 Å and Z = 1 for formula Cu7.2−xS4.