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 = 200 C Locality: synthetic _database_code_amcsd 0006937 5.589 5.589 5.589 90 90 90 Fm3m atom x y z occ Biso S 0 0 0 2.5 Cu1 1/4 1/4 1/4 .275 3.0 Cu3 .117 .18 .2685 .026 3.0