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 = 213 K
Locality: Jaroso Ravine, Sierra Almagrera, Andalusia, Almeria, Spain
_database_code_amcsd 0020096
7.2918 7.2918 17.1235 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     .0117  .0127  .0127  .0098  .0063       0      0
Fe       .5       0      .5 .93 .0038  .0020  .0009  .0081 .00044 -.00005 -.0001
Al       .5       0      .5 .07 .0038  .0020  .0009  .0081 .00044 -.00005 -.0001
S         0       0  .30890     .0057  .0044  .0044  .0085 .00219       0      0
O1        0       0   .6059     .0100  .0105  .0105  .0090  .0053       0      0
O2   .22258 -.22258 -.05377     .0088  .0098  .0098  .0101  .0072   .0001 -.0001
O3   .12696 -.12696  .13539     .0082  .0053  .0053  .0135  .0022   .0011 -.0011
H1     .188   -.188    .113      .032