Phlogopite
Pabst A
American Mineralogist 40 (1955) 967-974
Redescription of the single layer structure of the micas
_database_code_amcsd 0000077
5.32 9.21 10.16 90 100.03 90 C2/m
atom    x   y   z occ
K       0  .5   0
Mg1     0   0  .5
Mg2     0 .33  .5
Si   .575 .33 .22 .75
Al   .575 .33 .22 .25
O1   .055   0 .16
O2   .805 .25 .16
O3   .630 .33 .38
OH   .630   0 .38