Metanatrolite
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 = 598 K, crystal IV, "metanatrolite"
_database_code_amcsd 0014887
16.223 17.029 6.438 90 90 90.0 F2
atom      x       y       z  occ  Uiso
Na1   .0620   .1828   .1322 .940  .094
Na2   .3110   .0626   .3292  .47  .066
Na21  .2871   .0728   .3988  .47  .071
Al11 .02641  .10551   .6050 .903 .0288
Al12 .26764  .14240   .8613 .908 .0303
Si11      0       0 -.01031 .908 .0316
Si12    .25     .25   .2408 .924 .0304
Si21 .13714  .23497   .6151 .907 .0293
Si22 .11042 -.02143   .3617 .907 .0279
O11   .0413   .0701   .8596      .0493
O12   .2359   .1711   .1100      .0420
O21   .0412   .2084   .5954      .0434
O22   .2083  -.0416   .3482      .0396
O31   .0905   .0699   .4052      .0479
O32   .1465   .3033   .7830      .0498
O41   .0724  -.0757   .5440      .0476
O42   .1916   .1593   .6796      .0540
O51   .0721  -.0414   .1317      .0462
O52   .1688   .2650   .3865      .0453