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 = 20 C
_database_code_amcsd 0006872
5.2173 9.0493 19.989 90 95.734 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  .087   .25 .475 .022
Na      0  .087   .25 .025 .022
Al   .242 .0834 .0009  .76 .005
Mg   .242 .0834 .0009  .10 .005
Fe   .242 .0934 .0009  .14 .005
SiT1 .462  .925 .1350  .81 .015
AlT1 .462  .925 .1350  .19 .015
SiT2 .452  .260 .1377  .81 .006
AlT2 .452  .260 .1377  .19 .006
O1   .457 .9398 .0513      .013
O2   .394 .2536 .0521      .011
O3   .454 .5620 .0520  .98 .012
F3   .454 .5620 .0520  .02 .012
O4   .429 .0955 .1688      .019
O5   .231 .8205 .1591      .028
O6   .248 .3644 .1693      .016
H1   .350  .656  .052  .98        .061   .047   .043   .048   .053   .035