Nierite
Kohatsu I, McCauley J W
Materials Research Bulletin 9 (1974) 917-920
Re-examination of the crystal structure of alpha-Si3N4
Locality: synthetic
_database_code_amcsd 0014238
7.766 7.766 5.615 90 90 120 P31c
atom     x     y     z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3)  B(2,3)
Si1  .5130 .4305  .658 .96  .0080  .0058  .0081  .0032  .0014  .00059
Si2  .1680 .9150 .4504 .99  .0080  .0071  .0064  .0038  .0038 -.00047
N1   .6124 .9592 .4343      .0018  .0043  .0241 -.0003  .0028   .0067
N2   .3199 .0046 .7045      .0016  .0014  .0213 -.0017  .0026   .0012
N3     2/3   1/3 .6015      .0024  .0024  .0074  .0012      0       0
N4       0     0 .4520 .98  .0064  .0064  .0179  .0032      0       0