Milarite
Armbruster T, Bermanec V, Wenger M, Oberhansli R
European Journal of Mineralogy 1 (1989) 353-362
Crystal chemistry of double-ring silicates:
Structure of natural and dehydrated milarite at 100 K
Note: natural sample
Locality: Val Giuf, Graubunden, Switzerland
_database_code_amcsd 0006356
10.398 10.398 13.771 90 90 120 P6/mcc
atom      x      y      z  occ  Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
KC        0      0    1/4       .744  .0092  .0092  .0099  .0046      0      0
CaA     1/3    2/3    1/4      1.441  .0123  .0123  .0302  .0061      0      0
BeT2    1/2    1/2    1/4  .77   .29  .0034  .0034  .0041  .0016      0      0
AlT2    1/2    1/2    1/4  .23   .29  .0034  .0034  .0041  .0016      0      0
SiT1 .08115 .33622 .11286       .432  .0052  .0063  .0048  .0028  -.004 -.0006
O1    .0937  .3831      0        .98  .0200  .0128  .0046  .0083      0      0
O2    .1951  .2760 .13492        .89  .0112  .0158  .0117  .0104 -.0022 -.0032
O3    .1149  .4731 .18100        .62  .0091  .0076  .0073  .0045 -.0018 -.0022
KB      1/3    2/3      0  .07   2.4    .02    .02    .05    .01      0      0
OB'     1/3    2/3  .0476 .147   1.0
KD        0      0      0 .013   1.0