Pyrope 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 JW28 _database_code_amcsd 0001566 11.5670 11.5670 11.5670 90 90 90 Ia-3d atom x y z occ Biso Si .375 0 .25 .395 Al 0 0 0 .337 Mg .125 0 .25 .742 .579 Ca .125 0 .25 .258 .579 O .0340 .0481 .6525 .399