Chloritoid Hanscom R American Mineralogist 65 (1980) 534-539 The structure of triclinic chloritoid and chloritoid polymorphism _database_code_amcsd 0000786 9.460 5.500 9.150 97.05 101.56 90.10 C-1 atom x y z occ Biso Al1a .25 .25 0 .840 1.08 Fe1a .25 .25 0 .160 1.08 Al2a 0 .5 .5 0.59 Fe1b .0837 .7470 .0018 .885 0.74 Mg1b .0837 .7470 .0018 .075 0.74 Al2b1 .25 .25 .5 0.67 Al2b2 .25 .75 .5 0.72 Si .4620 .4643 .3135 0.72 O1a .1093 .4142 .1062 1.17 O1b .2655 .9615 .1027 1.15 O1c .4204 .4217 .1264 1.19 O2a .3942 .2316 .3759 0.73 O2b .3939 .7186 .375 0.76 O2c .1351 .9753 .3737 0.73 O2d .1486 .4811 .4013 0.84