Coquimbite
Fang J H, Robinson P D
American Mineralogist 55 (1970) 1534-1540
Crystal structures and mineral chemistry of hydrated ferric sulfates. I. The
crystal structure of coquimbite
_database_code_amcsd 0000211
10.922 10.922 17.084 90 90 120 P-31c
atom     x     y     z occ Biso
Al       0     0     0  .9 1.07
Fe       0     0     0  .1 1.07
Fe1  .3333 .6667   .25     1.71
Fe2  .6667 .3333 .0025     2.19
S    .2444 .4146 .1232     0.49
O1   .3187 .3451 .0909     1.42
O2   .1081 .3106 .1548     1.03
O3   .2197 .4946 .0597     1.21
O4   .3349 .5158 .1838      .74
Wat1 .1645 .0698 .0622     1.18
Wat2 .4485 .1153 .2101     1.71
Wat3 .5720 .1616 .0720     1.70