Yurmarinite
Masquelier C, d'Yvoire F, Collin G
Journal of Solid State Chemistry 118 (1995) 33-42
Crystal structure of Na7Fe4(AsO4)6 and alpha-Na3Al2(AsO4)3,
two sodium ion conductors structurally related to II-Na3Fe2(AsO4)3
Locality: synthetic
_database_code_amcsd 0019957
13.807 13.807 18.354 90 90 120 R-3c
atom      x      y      z occ Biso
Na1       0      0      0     1.31
Na2   .7915  .0166  .0537 .98 1.74
Fe1       0      0    .25      .59
Fe2   .7804      0    .25      .47
As   .18456 .98870 .14550      .56
O1    .5279  .0620  .1472      .97
O2    .7130  .0545  .1781     1.00
O3    .5924  .1874  .0210      .88
O4    .0251  .1644  .0608     1.14