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 = 348 K _database_code_amcsd 0002782 11.621 11.621 11.621 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 .0477 .6526 .0057 .0070 .0046 .0008 -.0006 .0005 Mn 0 .25 1/8 .0102 .0102 .0048 .0022 0 0 Al 0 0 0 .0045 .0045 .0045 .0003 .0003 .0003 Si 3/8 0 .25 .0038 .0040 .0040 0 0 0