Spessartine 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 = 598 K _database_code_amcsd 0002787 11.641 11.641 11.641 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 .0350 .0474 .6526 .0073 .0107 .0070 .0005 -.0008 .0004 Mn 0 .25 1/8 .0149 .0149 .0069 .0029 0 0 Al 0 0 0 .0062 .0062 .0062 .0004 .0004 .0004 Si 3/8 0 .25 .0061 .0053 .0053 0 0 0