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 = 820 C _database_code_amcsd 0005969 9.24124 9.24124 9.24124 90 90 90 I-43m atom x y z occ Uiso Ca .2175 .2175 .2175 .0663 Al .25 .5 0 .0132 Cr 0 0 0 .0581 O .1590 .1590 .4573 .0561 OCr .1261 .1261 -.0306 1/3 .0581