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 = 200 C
_database_code_amcsd 0006874
5.2230 9.0618 20.044 90 95.738 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  .095    .25 .475 .029
Na      0  .095    .25 .025 .029
Al   .236 .0811 -.0014  .76 .014
Mg   .236 .0811 -.0014  .10 .014
Fe   .236 .0811 -.0014  .14 .014
SiT1 .458  .920  .1335  .81 .032
AlT1 .458  .920  .1335  .19 .032
SiT2 .454  .261  .1363  .81 .007
AlT2 .454  .261  .1363  .19 .007
O1   .455 .9420  .0523      .015
O2   .394 .2572  .0541      .009
O3   .462 .5605  .0507  .98 .015
F3   .462 .5605  .0507  .02 .015
O4   .437 .0960  .1682      .017
O5   .231 .8227  .1593      .030
O6   .246 .3587  .1703      .013
H1   .339  .647   .057  .98        .083   .060   .084   .058   .046  -.002