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 = 901 C _database_code_amcsd 0005971 9.24569 9.24569 9.24569 90 90 90 I-43m atom x y z occ Uiso Ca .2178 .2178 .2178 .0654 Al .25 .5 0 .0132 Cr 0 0 0 .0601 O .1590 .1590 .4575 .0552 OCr .1254 .1254 -.0300 1/3 .0601