Nepheline
Antao S M, Hassan I
The Canadian Mineralogist 48 (2010) 69-80
Nepheline: structure of three samples from the Bancroft area, Ontario,
obtained using synchrotron high-resolution powder x-ray diffraction
Locality: Davis Hill, Bancroft area, Ontario, Canada
Sample: 3
_database_code_amcsd 0006320
9.99567 9.99567 8.37873 90 90 120 P6_3
atom      x      y     z  occ   Uiso
K1        0      0 .9992 .778  .0209
Na1  .44381  .9973 .9987       .0259
Al1     2/3    1/3 .8035       .0096
Al2   .3369  .0948 .3105      .00880
Si1     2/3    1/3 .1934       .0096
Si2   .3305  .0929 .6842  1/3 .00880
O1    .7125  .3452 .0063        .022
O2    .3166  .0280 .4996       .0234
O3    .5138  .1672 .7198       .0234
O4    .5195  .1734 .2347       .0234
O5    .2663  .2236 .3008       .0234
O6    .2834  .2252 .6828       .0234