Natrolite
Baur W H, Joswig W
Neues Jahrbuch fur Mineralogie, Monatshefte 1996 (1996) 171-187
The phases of natrolite occurring during dehydration and rehydration studied
by single crystal X-ray diffraction methods between room temperature and 923 K
Locality: Khibiny, Kola peninsula, Russia
Sample: T = 823 K, crystal III, "high natrolite"
_database_code_amcsd 0014892
17.324 17.638 6.416 90 90 90 Fdd2
atom      x      y      z occ Uiso
Na1    .067   .312   .306 .25  .14
Na2    .017   .326   .690 .25 .056
Na3   -.041   .312   .647 .25  .12
Na4    .110   .136   .068 .25  .15
Al   -.0283 -.1013  .6128     .080
Si1       0      0 -.0020     .048
Si2  -.1463 -.2247  .6262     .072
O1    .0203  .0704   .838      .15
O2    .0598  .1978   .615      .09
O3   -.1525 -.3029   .716     .128
O4    .1998  .1626   .741     .172
O5    .1786  .2245   .407     .108