Fluor-uvite
MacDonald D J, Hawthorne F C
The Canadian Mineralogist 33 (1995) 849-858
The crystal chemistry of Si=Al substitution in tourmaline
Sample: T78
Locality: East Africa
_database_code_amcsd 0005442
15.955 15.955 7.170 90 90 120 R3m
atom      x      y      z  occ  Uiso
CaX       0      0  .8408 .774 .0134
NaX       0      0  .8408 .202 .0134
MgY  .06326 .93674  .4372 .913 .0052
TiY  .06326 .93674  .4372 .012 .0052
VY   .06326 .93674  .4372 .042 .0052
LiY  .06326 .93674  .4372 .026 .0052
CrY  .06326 .93674  .4372 .007 .0052
AlZ  .26156 .29796  .4528 .933 .0050
MgZ  .26156 .29796  .4528 .067 .0050
Si   .19042 .19220  .0659 .919 .0053
Al   .19042 .19220  .0659 .081 .0053
B    .89019 .10981  .6143      .0074
F1        0      0  .2910 .808 .0084
OH1       0      0  .2910 .192 .0084
O2   .93950 .06050  .5918      .0093
OH3  .13403 .86597  .5559      .0084
O4   .90773 .09227 -.0063      .0118
O5   .09099 .90901 -.0278      .0112
O6   .18706 .19627  .2894      .0084
O7   .28528 .28572 -.0155      .0087
O8   .27036 .20939  .6238      .0081