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: Nephton, Bancroft area, Ontario, Canada
Sample: 2
_database_code_amcsd 0006319
10.00215 10.00215 8.38742 90 90 120 P6_3
atom      x      y     z  occ   Uiso
K1        0      0 .9950 .920  .0202
Na1  .44424 .99778 .0019      .02620
Al1     2/3    1/3 .1875       .0100
Al2   .3332  .0938 .6842      .00938
Si1     2/3    1/3 .7984       .0100
Si2   .3337  .0927 .3104      .00938
O1    .7073  .3371 .9874  1/3   .028
O2    .3159  .0261 .4995       .0245
O3    .5236  .1759 .7223       .0313
O4    .5112  .1627 .2390       .0225
O5    .2861  .2235 .3140       .0136
O6    .2651  .2235 .6938       .0159