Hilairite
Ilyushin G D, Voronkov A A, Nevskii N N, Ilyukhin V V, Belov N V
Doklady Akademii Nauk SSSR 260 (1981) 1118-1120
Crystal structure of hilairite, Na2ZrSi3O9*3H2O
_database_code_amcsd 0012472
10.556 10.556 15.855 90 90 120 R32
atom     x     y     z  occ Biso
Na1      0     0 .1970 .800  7.9
Na2  .3888     0    .5 .678  2.6
Zr1      0     0     0      1.19
Zr2      0     0    .5      1.00
Si   .4174 .4128 .2486       .72
O1   .0921 .1846 .0768      1.19
O2   .0989 .1902 .5720      1.18
O3   .6539     0     0      1.19
O4   .6434     0    .5      1.22
Wat  .5000 .1460 .0630      3.63