Grossular Geiger C A, Armbruster T American Mineralogist 82 (1997) 740-747 Mn3Al2Si3O12 spessartine and Ca3Al2Si3O12 grossular garnet: Structural dynamics and thermodynamic properties Sample: at T = 293 K _database_code_amcsd 0001927 11.619 11.619 11.619 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) CaX 0 .25 .125 .0076 .0076 .0033 .0026 0 0 AlY 0 0 0 .0032 .0032 .0032 .0000 .0000 .0000 Si 3/8 0 .25 .0023 .0029 .0029 0 0 0 O .03491 .04791 .65250 .0044 .0055 .0036 .0010 -.0010 .0001