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: K
      _database_code_amcsd 0004571

      CELL PARAMETERS:    7.3045   7.3045  17.0875   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    789.569
      Density (g/cm3):      3.135
      MAX. ABS. INTENSITY / VOLUME**2:      21.16351178    
      RIR:      2.198
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.93         29.33        5.9324    1   0   1         6
                15.56         25.22        5.6958    0   0   3         2
                17.44         59.38        5.0840    0   1   2         6
                24.37          9.14        3.6523    1   1   0         6
                25.15          2.86        3.5402    1   0   4         6
                28.70         61.74        3.1101    0   2   1         6
                29.04        100.00        3.0745    1   1   3        12
                29.71          1.02        3.0068    0   1   5         6
                30.13         11.74        2.9662    2   0   2         6
                31.41         18.75        2.8479    0   0   6         2
                35.31         19.56        2.5420    0   2   4         6
                38.00          1.66        2.3679    2   1   1        12
                39.12          1.97        2.3025    1   2   2        12
                39.57         28.81        2.2774    1   0   7         6
                45.89         28.78        1.9775    0   3   3         6
                45.89          1.45        1.9775    3   0   3         6
                46.35          1.04        1.9591    1   2   5        12
                47.02          7.59        1.9325    0   2   7         6
                47.91          4.12        1.8986    0   0   9         2
                49.94         29.18        1.8261    2   2   0         6
                51.64          4.63        1.7701    2   0   8         6
                52.63          3.91        1.7389    2   2   3        12
                53.30          2.85        1.7186    3   1   2        12
                53.66          2.42        1.7081    2   1   7        12
                54.47          2.14        1.6846    1   1   9        12
                56.72          2.24        1.6229    1   3   4        12
                57.89          3.80        1.5929    1   2   8        12
                58.62          2.73        1.5747    4   0   1         6
                59.20          3.68        1.5608    3   1   5        12
                59.44          5.01        1.5551    0   4   2         6
                60.20         14.15        1.5372    2   2   6        12
                61.70         16.69        1.5034    0   2  10         6
                62.64          4.82        1.4831    4   0   4         6
                64.43          1.92        1.4461    3   2   1        12
                64.98          1.67        1.4352    0   4   5         6
                65.21          1.88        1.4308    2   3   2        12
                65.52          2.36        1.4247    1   3   7        12
                66.24          2.71        1.4109    0   3   9         6
                67.13          2.25        1.3943    2   0  11         6
                70.15          2.75        1.3416    1   4   3        12
                70.15          4.46        1.3416    4   1   3        12
                71.02          1.43        1.3273    4   0   7         6
                71.71          1.74        1.3161    2   2   9        12
                73.60          1.16        1.2869    1   0  13         6
                76.34          5.11        1.2475    3   2   7        12
                78.07          1.30        1.2241    1   3  10        12
                83.24          2.24        1.1607    4   0  10         6
                84.03          3.13        1.1518    2   1  13        12
                86.71          1.33        1.1229    2   2  12        12
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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.