Phlogopite Brigatti M F, Medici L, Saccani E, Vaccaro C American Mineralogist 81 (1996) 913-927 Crystal chemistry and petrologic significance of Fe3+-rich phlogopite from the Tapira carbonatite complex, Brazil Sample: Tas22-1b _database_code_amcsd 0001821 5.358 9.277 10.308 90 99.99 90 C2/m atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Si .0755 .16666 .22672 .77 .0123 .0044 .0039 -.0001 .0022 .0000 Fe .0755 .16666 .22672 .23 .0123 .0044 .0039 -.0001 .0022 .0000 Fe1 0 0 .5 .08 .0140 .0047 .0048 0 .0026 0 Mg1 0 0 .5 .92 .0140 .0047 .0048 0 .0026 0 Fe2 0 .3328 .5 .08 .0121 .0041 .0042 0 .0025 0 Mg2 0 .3328 .5 .92 .0121 .0041 .0042 0 .0025 0 K 0 .5 0 .98 .0287 .0100 .0069 0 .0031 0 Na 0 .5 0 .02 .0287 .0100 .0069 0 .0031 0 O1 .0012 0 .1701 .0350 .0089 .0068 0 .0020 0 O2 .3342 .2221 .1700 .0310 .0104 .0062 -.0022 .0038 -.0010 O3 .1309 .1670 .3918 .0124 .0034 .0045 -.0002 .0026 .0000 OH4 .1330 .5 .3977 .89 .0163 .0050 .0045 0 .0030 0 F4 .1330 .5 .3977 .03 .0163 .0050 .0045 0 .0030 0 O4 .1330 .5 .3977 .08 .0163 .0050 .0045 0 .0030 0