Natrite
Arakcheeva A, Bindi L, Pattison P, Meisser N, Chapuis G, Pekov I
American Mineralogist 95 (2010) 574-581
The incommensurately modulated structures of natural natrite at 120
and 293 K from synchrotron X-ray data
Locality: Mt. Koashva, Khibiny massif, Kola peninsula, Russia
T = 120 K
_database_code_amcsd 0005042
8.825 5.194 5.953 90 101.83 90 C2/m
atom      x      y      z  occ  Uiso
Na1       0      0      0 .976 .0117
Na2       0      0     .5 .987 .0117
Na3  .17101     .5 .74766 .977 .0155
C    .16446     .5  .2492      .0103
O1   .10211 .29314 .28695      .0186
O2   .28945     .5 .17451      .0159