Grossular Ganguly J, Cheng W, O'Neill H St C American Mineralogist 78 (1993) 583-593 Syntheses, volume, and structural changes of garnets in the pyrope-grossular join: Implications for stability and mixing properties Sample JW22 _database_code_amcsd 0001567 11.7445 11.7445 11.7445 90 90 90 Ia-3d atom x y z occ Biso Si .375 0 .25 .323 Al 0 0 0 .297 Mg .125 0 .25 .296 .486 Ca .125 0 .25 .702 .486 O .0359 .0463 .6518 .216