Yazganite
Sarp H, Cerny R
European Journal of Mineralogy 17 (2005) 367-373
Yazganite, NaFe3+2(Mg,Mn)(AsO4)3*H2O, a new mineral:
its description and crystal structure
Note: variant of the johillerite structure, alluaudite group
Locality: Volcanic complex of Erciyes, Kiranardi, Turkey
_database_code_amcsd 0007100
12.181 12.807 6.6391 90 112.441 90 C2/c
atom      x      y      z  occ  Uiso
Na        0     .5      0      .0175
Fe3+ .28082 .34398 .36711      .0082
Mg        0 .73268    .25 .656 .0142
Mn        0 .73268    .25 .344 .0142
As1       0 .27992    .25      .0085
As2  .24268 .10706 .12897      .0087
O1    .3291  .4919  .3890      .0162
O2    .3854  .0911  .1883      .0175
O3    .1071  .3627  .2441      .0129
O4    .3282  .3317  .1126      .0125
O5    .2254  .1814  .3303      .0113
O6    .0468  .2044  .4759      .0138
Wat    .997  .0004   .272   .5  .020