Natrojarosite
Basciano L C, Peterson R C
American Mineralogist 93 (2008) 853-862
Crystal chemistry of the natrojarosite-jarosite and natrojarosite-hydronium
jarosite solid-solution: A synthetic study with full Fe site occupancy
Locality: synthetic
Sample: R
_database_code_amcsd 0004578
7.3254 7.3254 16.7209 90 90 120 R-3m
atom       x        y       z occ Biso
Na         0        0       0 .67  3.5
H3O        0        0       0 .33  3.5
Fe   .166667 -.166667 -.16667     1.70
S          0        0   .3111      .99
O1         0        0   .3995      1.0
O2     .2235   -.2235  -.0522      1.4
O3     .1255   -.1255   .1308      .68
H       .166    -.166    .166        2