Gonnardite
Lee Y, Hriljac J A, Parise J B, Vogt T
American Mineralogist 91 (2006) 247-251
Pressure-induced hydration in zeolite tetranatrolite
Locality: Mt. Saint-Hilaire, Quebec, Canada
Note: P = 0 GPa
_database_code_amcsd 0004006
13.1988 13.1988 6.6288 90 90 90 I-42d
atom     x     y     z  occ  Uiso
Na   .6923   .25  .125 .731 .0268
Ca   .6923   .25  .125 .237 .0268
Si1      0     0     0 .537 .0080
Al1      0     0     0 .463 .0080
Si2  .0550 .1326 .6210 .537 .0080
Al2  .0550 .1326 .6210 .463 .0080
O1   .3918   .25  .125      .0120
O2   .1339 .0607 .4780      .0120
O3   .0526 .0951 .8662      .0120
Wat4 .1277   .25  .125       .038
Wat5  .875   .25  .125 .370  .038