Jarosite
      Basciano L C, Peterson R C
      American Mineralogist 93 (2008) 853-862
      Crystal chemistry of the natrojarosite-jarosite and natrojarosite-hydronium
      jarosite solid-solution: A synthetic study with full Fe site occupancy
      Locality: synthetic
      Sample: M
      _database_code_amcsd 0004573

      CELL PARAMETERS:    7.3079   7.3079  16.9028   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    781.762
      Density (g/cm3):      3.139
      MAX. ABS. INTENSITY / VOLUME**2:      20.70378591    
      RIR:      2.148
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.95         25.32        5.9270    1   0   1         6
                15.73         27.61        5.6343    0   0   3         2
                17.51         70.22        5.0659    0   1   2         6
                24.36          8.95        3.6539    1   1   0         6
                25.34          4.32        3.5143    1   0   4         6
                28.70         67.79        3.1104    0   2   1         6
                29.13        100.00        3.0657    1   1   3        12
                29.97          1.47        2.9818    0   1   5         6
                30.16         10.71        2.9635    2   0   2         6
                31.76         18.59        2.8171    0   0   6         2
                35.44         18.78        2.5329    0   2   4         6
                38.99          1.40        2.3102    2   0   5         6
                39.14          1.50        2.3017    1   2   2        12
                39.96         27.47        2.2561    1   0   7         6
                45.93         29.31        1.9757    0   3   3         6
                45.93          1.34        1.9757    3   0   3         6
                47.36          8.60        1.9196    0   2   7         6
                48.47          4.26        1.8781    0   0   9         2
                49.92         29.23        1.8270    2   2   0         6
                52.05          4.18        1.7572    2   0   8         6
                52.67          4.73        1.7379    2   2   3        12
                53.30          3.65        1.7186    3   1   2        12
                53.96          1.93        1.6994    2   1   7        12
                54.97          1.86        1.6704    1   1   9        12
                56.79          3.17        1.6210    1   3   4        12
                58.26          4.59        1.5836    1   2   8        12
                58.60          3.23        1.5753    4   0   1         6
                59.32          3.55        1.5578    3   1   5        12
                59.43          5.06        1.5552    0   4   2         6
                60.39         14.36        1.5328    2   2   6        12
                62.27         16.18        1.4909    0   2  10         6
                62.70          4.74        1.4817    4   0   4         6
                64.41          1.74        1.4466    3   2   1        12
                65.09          2.16        1.4330    0   4   5         6
                65.20          2.29        1.4310    2   3   2        12
                65.77          1.93        1.4198    1   3   7        12
                66.68          2.66        1.4027    0   3   9         6
                67.80          2.75        1.3823    2   0  11         6
                68.31          1.08        1.3731    3   2   4        12
                70.16          2.81        1.3414    1   4   3        12
                70.16          4.22        1.3414    4   1   3        12
                71.26          1.79        1.3234    4   0   7         6
                72.13          1.95        1.3096    2   2   9        12
                74.50          1.07        1.2736    1   0  13         6
                76.57          4.74        1.2443    3   2   7        12
                78.57          1.16        1.2175    1   3  10        12
                83.73          2.11        1.1551    4   0  10         6
                84.88          3.03        1.1424    2   1  13        12
                86.27          1.05        1.1275    4   2   5        12
                87.43          1.28        1.1155    2   2  12        12
                88.75          1.33        1.1023    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.