Normandite
Perchiazzi N, McDonald A M, Gault R A, Johnsen O, Merlino S
The Canadian Mineralogist 38 (2000) 641-648
The crystal structure of normandite and its crystal-chemical
relationships with lavenite
Locality: Amdrup Fjord
_database_code_amcsd 0005649
10.798 9.835 7.090 90 108.08 90 P2_1/a
atom      x      y      z  occ  Uiso
Ti   .28825 .10359 .02313 .612 .0119
Zr   .28825 .10359 .02313 .388 .0119
Mn   .43743 .36943 .85858      .0139
Ca   .30224 .10885  .5255  .66 .0158
Na   .30224 .10885  .5255  .34 .0158
Na    .4256  .3786  .3398  .83 .0206
Ca    .4256  .3786  .3398  .17 .0206
Si1  .62168 .16485  .2136      .0107
Si2  .62051 .16633  .6705      .0106
O1    .6397  .1628  .4508      .0246
O2    .7411  .2627  .2050      .0156
O3    .7480  .2512  .8020      .0166
O4    .6537  .0111  .1633      .0177
O5    .6300  .0088  .7400      .0186
O6    .4784  .2209  .0959      .0145
O7    .4852  .2392  .6538      .0172
O8    .6235  .4755  .9577      .0179
F     .3881  .5050  .5998      .0226