Al2O3 Husson E, Repelin Y European Journal of Solid State and Inorganic Chemistry 33 (1996) 1223-1231 Structural studies of transition aluminas. Theta alumina _cod_database_code 1200005 _database_code_amcsd 0018285 11.795 2.91 5.621 90 103.79 90 C2/m atom x y z O1 .16268 0 .12276 O2 .48945 0 .26127 O3 .82995 0 .43863 Al1 .10134 0 .7944 Al2 .35235 0 .68739