Phlogopite
Steinfink H
American Mineralogist 47 (1962) 886-889
Crystal structure of a trioctahedral mica: Phlogopite
_database_code_amcsd 0000114
5.36 9.29 10.41 90 100.0 90 C2/m
atom     x     y     z occ Biso
K        0     0     0 .90 2.22
Mn       0     0     0 .10 2.22
Mg1      0    .5    .5     1.39
Mg2      0 .8333    .5     1.39
Si   .5766 .1679 .2261 .75 2.42
Fe   .5766 .1679 .2261 .25 2.73
O1   .8338 .2229 .1692     2.79
O2   .6273 .1682 .3900     2.79
O3   .4963     0 .1700     2.79
OH4  .1354     0 .3955     2.79