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 = 261 K _database_code_amcsd 0002769 11.847 11.847 11.847 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 .0453 .65154 .0043 .0052 .0040 .0001 -.0001 .0005 Ca 0 .25 1/8 .0051 .0051 .0031 .001 0 0 Al 0 0 0 .0037 .0037 .0037 .0002 .0002 .0002 Si 3/8 0 .25 .0034 .0030 .0030 0 0 0