Nepheline
Buerger M, Klein G, Hamburger G
Geological Society of America, Bulletin 57 (1946) 1182-1183
Structure of Nepheline
_cod_database_code 1008761
_database_code_amcsd 0016638
10.05 10.05 8.38 90 90 120 P6_3
atom   x   y   z
Na1    0   0   0
Si1  1/3 2/3 .82
Al1  1/3 2/3 .18
O1   1/3 2/3   0
Na2  .01 .43   0
Si2  .09 1/3 1/3
Al2  .09 1/3 2/3
O2   .02 1/3  .5
O3   .17 .52 .75
O4   .17 .52 .25
O5   .25 .28 .25
O6   .25 .28 .75