Iowaite
Zhitova E S, Chukanov N V, Pekov I V, Zolotarev A A, Shilovskikh V V, Bocharov V N
Applied Clay Science 243 (2023) 107070
Crystal chemistry of iowaite, Mg6FeIII2(OH)16Cl2 x 4H2O, a natural layered double hydroxide
Locality: Talnakh, Russia
_database_code_amcsd 0021230
3.1077 3.1077 23.885 90 90 120 R-3m
atom    x    y     z  occ  Uiso
Mg      0    0     0  .75 .0192
Al      0    0     0  .04 .0192
Fe      0    0     0  .21 .0192
O1    1/3  2/3 .0424      .0195
H1    1/3  2/3 .0819       .029
Wat2 .147  2/3   1/6 .084   .08
Cl2  .147  2/3   1/6 .014   .08
Cl   .734 .266  .167 .021   .06