Lueshite
Vousden P
Acta Crystallographica 4 (1951) 545-551
The structure of ferroelectric sodium niobate at room temperature
Locality: synthetic
Note: this is a possible polymorph of lueshite
_database_code_amcsd 0018662
5.504 5.568 15.52 90 90 90 P222_1
atom     x     y    z
Na1      0  .519  .25
Na2     .5 -.019  .25
Na3   .519     0   .5
Na4  -.019    .5   .5
Nb1   .014  .005 .375
Nb2   .514  .505 .375
O1     .25   .25 .375
O2     .75   .25 .375
O3     .25   .75 .375
O4     .75   .75 .375
O5       0  .025  .25
O6      .5  .475  .25
O7    .025     0   .5
O8    .475    .5   .5