Phlogopite Comodi P, Fumagalli P, Montagnoli M, Zanazzi P F American Mineralogist 89 (2004) 647-653 A single-crystal study on the pressure behavior of phlogopite and petrological implications P = 6.0 GPa _database_code_amcsd 0003538 5.256 9.105 9.71 90 100.4 90 C2/m atom x y z occ Uiso K 0 0 0 .91 .0141 Ba 0 0 0 .03 .0141 Na 0 0 0 .02 .0141 SiT .5720 .1668 .2160 .68 .0079 AlT .5720 .1668 .2160 .32 .0079 MgM1 0 1/2 1/2 .72 .0072 FeM1 0 1/2 1/2 .28 .0072 MgM2 0 .8369 1/2 .73 .0074 FeM2 0 .8369 1/2 .27 .0074 O1 .834 .2196 .154 .019 O2 .488 0 .152 .019 O3 .6317 .1674 .393 .011 O4 .128 0 .387 .05 .010 F4 .128 0 .387 .09 .010 OH4 .128 0 .387 .86 .010