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

      CELL PARAMETERS:    7.2918   7.2918  17.1235   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    788.484
      Density (g/cm3):      3.125
      MAX. ABS. INTENSITY / VOLUME**2:      22.47252297    
      RIR:      2.341
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.95         28.37        5.9248    1   0   1         6
                15.52         18.41        5.7078    0   0   3         2
                17.45         51.21        5.0821    0   1   2         6
                24.41         10.83        3.6459    1   1   0         6
                25.13          2.37        3.5434    1   0   4         6
                28.75         60.13        3.1051    0   2   1         6
                29.06        100.00        3.0726    1   1   3        12
                30.17         11.88        2.9624    2   0   2         6
                31.34         18.69        2.8539    0   0   6         2
                35.32         20.95        2.5410    0   2   4         6
                38.07          2.50        2.3639    2   1   1        12
                39.18          1.99        2.2991    1   2   2        12
                39.51         31.53        2.2810    1   0   7         6
                45.95         29.26        1.9749    0   3   3         6
                45.95          1.98        1.9749    3   0   3         6
                46.37          1.07        1.9582    1   2   5        12
                46.99          8.54        1.9338    0   2   7         6
                47.81          5.07        1.9026    0   0   9         2
                50.04         32.23        1.8230    2   2   0         6
                51.59          5.92        1.7717    2   0   8         6
                52.71          4.35        1.7365    2   2   3        12
                53.39          3.33        1.7159    3   1   2        12
                53.65          2.61        1.7083    2   1   7        12
                54.39          2.40        1.6867    1   1   9        12
                56.79          3.02        1.6210    1   3   4        12
                57.87          4.05        1.5935    1   2   8        12
                58.73          3.72        1.5721    4   0   1         6
                59.26          4.53        1.5593    3   1   5        12
                59.54          6.53        1.5525    0   4   2         6
                60.24         17.21        1.5363    2   2   6        12
                61.62         20.52        1.5052    0   2  10         6
                62.73          6.24        1.4812    4   0   4         6
                64.56          1.92        1.4436    3   2   1        12
                65.06          2.65        1.4337    0   4   5         6
                65.33          2.62        1.4284    2   3   2        12
                65.55          3.17        1.4241    1   3   7        12
                66.21          3.39        1.4115    0   3   9         6
                67.03          3.13        1.3962    2   0  11         6
                70.27          3.86        1.3395    1   4   3        12
                70.27          5.43        1.3395    4   1   3        12
                71.07          2.29        1.3265    4   0   7         6
                71.70          3.19        1.3163    2   2   9        12
                73.44          1.80        1.2894    1   0  13         6
                76.41          6.63        1.2465    3   2   7        12
                78.05          1.38        1.2244    1   3  10        12
                80.71          1.01        1.1905    2   4   1        12
                83.24          3.63        1.1607    4   0  10         6
                83.90          4.04        1.1532    2   1  13        12
                84.23          1.43        1.1496    2   4   4        12
                86.33          1.52        1.1269    4   2   5        12
                86.64          2.55        1.1236    2   2  12        12
                87.38          1.05        1.1160    4   1   9        12
                88.13          2.10        1.1085    0   4  11         6
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.