Cryptohalite
Schlemper E O, Hamilton W C, Rush J J
Journal of Chemical Physics 44 (1966) 2499-2505
Structure of cubic ammonium fluosilicate: Neutron-diffraction and
neutron-inelastic-scattering studies
Locality: synthetic
_database_code_amcsd 0012983
8.395 8.395 8.395 90 90 90 Fm3m
atom     x    y    z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Si       0    0    0     .00602 .00602 .00602      0      0      0
N      .25  .25  .25     .00779 .00779 .00779      0      0      0
F    .2011    0    0     .00567 .00959 .00959      0      0      0
H     .168 .168 .269 1/3  .0174  .0174  .0336 -.0076  -.003  -.003