Digenite Will G, Hinze E, Abdelrahman A R M European Journal of Mineralogy 14 (2002) 591-598 Crystal structure analysis and refinement of digenite, Cu1.8S, in the temperature range 20 to 500 C under controlled sulfur partial pressure Sample: T = 400 C Locality: synthetic _database_code_amcsd 0006939 5.593 5.593 5.593 90 90 90 Fm3m atom x y z occ Biso S 0 0 0 3.8 Cu1 1/4 1/4 1/4 .25 5.0 Cu2 1/2 1/2 1/2 .05 5.0 Cu3 .1134 .16 .2642 .026 5.0