Na7.5Si6Al6O24S4.5*.5D2O
Tarling S E, Barnes P, Klinowski J
Acta Crystallographica B44 (1988) 128-135
The structure and Si,Al distribution of the ultramarines
Note: disordered synthetic counterpart to lazurite
Note: occupancies changed to match formula
_database_code_amcsd 0009825
9.0338 9.0338 9.0338 90 90 90 I-43m
atom    x    y    z   occ Biso
Na   .182 .182 .182 .9375 19.7
Si    .25   .5    0    .5   .5
Al    .25   .5    0    .5   .5
O1   .350 .350 .018        4.2
S    .079    0    0  .375 24.5
WatD .182 .182 .182 .0625 11.6