Nepheline
Gatta G D, Angel R J
American Mineralogist 92 (2007) 1446-1455
Elastic behavior and pressure-induced structural evolution of nepheline:
Implications for the nature of the modulated superstructure
Locality: intrusive aplite of Snipe River, Tambani, Nyasaland, Malawi
Sample: P = .0001 GPa, in DAC
_database_code_amcsd 0004423
9.9910 9.9910 8.3702 90 90 120 P6_3
atom      x      y      z occ  Uiso
K         0      0  .0051 .54  .032
NaK       0      0  .0051 .24  .032
CaK       0      0  .0051 .03  .032
Na   .55384 .99711  .5071     .0239
AlT1    2/3    1/3  .7028     .0069
SiT2    2/3    1/3  .3144     .0173
SiT3 .90486 .66596 .82172     .0112
AlT4 .90743 .66818 .19535     .0128
O1    .6565  .2857  .5022 1/3 .0234
O2    .9740  .6844  .0021     .0244
O3    .8220  .4743  .2304     .0373
O4    .8393  .4905  .7526     .0198
O5    .7705  .7130  .8226     .0108
O6    .7787  .7369  .2016     .0274