Digenite Yamamoto K, Kashida S Journal of Solid State Chemistry 93 (1991) 202-211 X-ray study of the average structures of Cu2Se and Cu1.8S in the room temperature and the high temperature phases Note: Sample: Cu1.8S (high), T = 393 K Locality: synthetic _database_code_amcsd 0019151 5.582 5.582 5.582 90 90 90 Fm3m atom x y z occ Uiso Cu1 .25 .25 .25 .68 .105 Cu2 .322 .322 .322 .06 .028 S 0 0 0 .008