 It occurs with other supergene minerals such as chalcocite, covellite and digenite in the enriched zone of copper orebodies.It is a member of the chalcocite group, and very similar to chalcocite, Cu2S, in its composition and properties, but the two minerals can be distinguished from each other by x-ray powder diffraction.Intergrowths and transformations between djurleite, digenite and chalcocite are common.