Jarosite
Mills S J, Nestola F, Kahlenberg V, Christy A G, Hejny C, Redhammer G J
American Mineralogist 98 (2013) 1966-1971
Looking for jarosite on Mars: The low-temperature crystal structure of jarosite
Note: T = 133 K
Locality: Jaroso Ravine, Sierra Almagrera, Andalusia, Almeria, Spain
_database_code_amcsd 0020098
7.2907 7.2907 17.0900 90 90 120 R-3m
atom      x       y       z occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
K         0       0       0      .0076  .0080  .0080  .0066  .0040       0       0
Fe       .5       0      .5 .93 .00252  .0008     00  .0065 .00001 -.00006 -.00011
Al       .5       0      .5 .07 .00252  .0008     00  .0065 .00001 -.00006 -.00011
S         0       0  .30918      .0046  .0032  .0032  .0075 .00158       0       0
O1        0       0  .60530      .0078  .0070  .0070  .0093  .0035       0       0
O2   .22253 -.22253 -.05352      .0069  .0062  .0062  .0098  .0041      00      00
O3   .12697 -.12697  .13524      .0064  .0041  .0041  .0115  .0024   .0012  -.0012
H1     .188   -.188    .114       .018