Grossular Rodehorst U, Geiger C A, Armbruster T American Mineralogist 87 (2002) 542-549 The crystal structures of grossular and spessartine between 100 and 600 K and the crystal chemistry of grossular-spessartine solid solutions Sample: T = 348 K _database_code_amcsd 0002772 11.853 11.853 11.853 90 90 90 Ia-3d atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) O .0382 .0451 .65145 .0054 .0058 .0046 .0003 -.0006 .0003 Ca 0 .25 1/8 .0065 .0065 .0039 .0011 0 0 Al 0 0 0 .0044 .0044 .0044 .0003 .0003 .0003 Si 3/8 0 .25 .0037 .0032 .0032 0 0 0