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 = 398 K _database_code_amcsd 0002773 11.855 11.855 11.855 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 .03827 .04512 .65158 .0068 .0070 .0057 .0006 -.0006 .0004 Ca 0 .25 1/8 .0082 .0082 .0051 .0012 0 0 Al 0 0 0 .0058 .0058 .0058 -.0002 -.0002 -.0002 Si 3/8 0 .25 .0049 .0048 .0048 0 0 0