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 = 773 K, crystal II, "metanatrolite"
_database_code_amcsd 0014890
16.736 17.622 6.4649 90 90 90.0 F2
atom     x      y       z occ  Uiso
Na1  .0500  .1831   .1441 .92  .196
Na2  .2942  .0583    .374 .41  .168
Na21 .2523  .0714    .415 .41  .064
Al11 .0319  .1008   .6083     .0437
Al12 .2754  .1468   .8594     .0412
Si11     0      0 -.01290     .0411
Si12   .25    .25   .2428     .0459
Si21 .1412  .2275   .6152     .0387
Si22 .1069 -.0259   .3627     .0433
O11  .0369  .0687   .8544      .065
O12  .2491  .1733   .1112      .066
O21  .0471  .2021   .6043      .056
O22  .1978 -.0532   .3468      .051
O31  .0992  .0625   .4300      .048
O32  .1472  .2966   .7634      .066
O41  .0662 -.0811   .5165      .060
O42  .1982  .1596   .6918      .066
O51  .0704 -.0351   .1298      .074
O52  .1724  .2535   .3875      .072