Spessartine Novak G A, Gibbs G V American Mineralogist 56 (1971) 791-825 The crystal chemistry of the silicate garnets sample Sp Locality: Minas Gerais, Brazil _database_code_amcsd 0000241 11.612 11.612 11.612 90 90 90 Ia-3d atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Si .375 0 .25 .00068 .00460 .00460 0 0 0 Al 0 0 0 .00076 .00076 .00076 -.00003 -.00003 -.00003 Mn .125 0 .25 .87 .00071 .00100 .00100 0 0 .00014 Fe .125 0 .25 .13 .00071 .00100 .00100 0 0 .00014 O .0351 .04766 .65261 .00075 .00088 .00056 .00013 -.00015 -.00002