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 = 626 C _database_code_amcsd 0005965 9.23004 9.23004 9.23004 90 90 90 I-43m atom x y z occ Uiso Ca .2167 .2167 .2167 .0687 Al .25 .5 0 .0126 Cr 0 0 0 .0531 O .1592 .1592 .4566 .0581 OCr .1268 .1268 -.0331 1/3 .0531