Phengite
Mookherjee M, Redfern S A T, Zhang M
European Journal of Mineralogy 13 (2001) 545-555
Thermal response of structure and hydroxyl ion of phengite-2M_1:
an in situ neutron diffraction and FTIR study
Sample: T = 700 C
Note: y-coordinate altered
_database_code_amcsd 0006883
5.2328 9.0948 20.207 90 95.694 90 C2/c
atom    x     y      z  occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
K       0  .088    .25 .475 .064
Na      0  .088    .25 .025 .064
Al   .234 .0799 -.0004  .76 .022
Mg   .234 .0799 -.0004  .10 .022
Fe   .234 .0799 -.0004  .14 .022
SiT1 .456  .922  .1317  .81 .042
AlT1 .456  .922  .1317  .19 .042
SiT2 .449  .264  .1324  .81 .013
AlT2 .449  .264  .1324  .19 .013
O1   .461 .9446  .0541      .030
O2   .393 .2565  .0539      .020
O3   .457 .5609  .0494  .98 .027
F3   .457 .5609  .0494  .02 .027
O4   .450 .0983  .1692      .036
O5   .226 .8266  .1574      .036
O6   .239 .3549  .1704      .034
H1   .347  .642   .057  .98        .200   .028   .240   .064   .099   .017