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 = 1.2 GPa _database_code_amcsd 0003535 5.318 9.210 10.10 90 100.12 90 C2/m atom x y z occ Uiso K 0 0 0 .91 .024 Ba 0 0 0 .03 .024 Na 0 0 0 .02 .024 SiT .5747 .1668 .223 .68 .0130 AlT .5747 .1668 .223 .32 .0130 MgM1 0 1/2 1/2 .72 .0122 FeM1 0 1/2 1/2 .28 .0122 MgM2 0 .8361 1/2 .73 .0126 FeM2 0 .8361 1/2 .27 .0126 O1 .834 .2232 .169 .024 O2 .502 0 .167 .025 O3 .630 .1663 .391 .020 O4 .128 0 .391 .05 .021 F4 .128 0 .391 .09 .021 OH4 .128 0 .391 .86 .021