Gd2 O3 Zachariasen W Norsk Geologisk Tidsskrift 9 (1927) 310-316 The crystal structure of the modification C of the sesquioxides of the rare earth metals, and of indium and thallium. _cod_database_code 1010338 _database_code_amcsd 0017264 10.79 10.79 10.79 90 90 90 I2_13 atom x y z Gd1 .25 .25 .25 Gd2 .021 0 .25 Gd3 .542 0 .25 O1 .125 .135 .395 O2 .1 .358 .373