Ca8[Al12O24](CrO4)2 Antao S M, Hassan I, Parise J B The Canadian Mineralogist 42 (2004) 1047-1056 Chromate aluminate sodalite, Ca8[Al12O24](CrO4)2: Phase transitions and high-temperature structural evolution of the cubic phase Sample: T = 561 C _database_code_amcsd 0005964 9.22621 9.22621 9.22621 90 90 90 I-43m atom x y z occ Uiso Ca .2166 .2166 .2166 .0694 Al .25 .5 0 .0122 Cr 0 0 0 .0527 O .1592 .1592 .4565 .0583 OCr .1267 .1267 -.0339 1/3 .0527