Ge S Zachariasen W Physical Review 40 (1932) 917-922 The crystal lattice of germano sulphide, Ge S _cod_database_code 1010649 _database_code_amcsd 0017530 4.29 10.42 3.64 90 90 90 Pbnm atom x y z Ge1 .167 -.125 0 S1 .111 .111 0