Ga4GeO8 Kahn A, Agafonov V, Michel D, Perez Y Jorba M Journal of Solid State Chemistry 65 (1986) 377-382 New gallium germanates with tunnel structures alpha Ga4GeO8 and Ga4Ge3O12 _cod_database_code 1001682 _database_code_amcsd 0013589 12.169 3.005 9.414 90 125.06 90 C2/m atom x y z Ge1 0 0 0 Ga1 .7576 0 .3596 Ga2 .4621 0 .2809 O1 .1627 0 .2183 O2 .6446 0 .4618 O3 .4403 0 .0738 O4 .8912 0 .3064