Gudmundite Buerger M Zeitschrift fur Kristallographie 101 (1939) 290-316 The crystal structure of gudmundite (FeSbS) and its bearing on the existence field of the arsenopyrite structural type _cod_database_code 1011042 _database_code_amcsd 0017944 6.02 5.93 6.02 90 67.87 90 P2_1/c atom x y z Fe1 -.3 .015 .3 Sb1 .148 .13 .132 S1 -.355 .144 .667