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 = 869 C _database_code_amcsd 0005970 9.24421 9.24421 9.24421 90 90 90 I-43m atom x y z occ Uiso Ca .2177 .2177 .2177 .0657 Al .25 .5 0 .0132 Cr 0 0 0 .0906 O .1590 .1590 .4575 .0556 OCr .1257 .1257 -.0303 1/3 .0906