Ammoniojarosite
      Basciano L C, Peterson R C
      Mineralogical Magazine 71 (2007) 427-441
      The crystal structure of ammoniojarosite, (NH4)Fe3(SO4)2(OH)6 and the crystal chemistry
      of the ammoniojarosite-hydronium jarosite solid-solution series
      Locality: Synthetic
      _database_code_amcsd 0014580

      CELL PARAMETERS:    7.3177   7.3177  17.5340   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    813.132
      Density (g/cm3):      2.939
      MAX. ABS. INTENSITY / VOLUME**2:      18.54829877    
      RIR:      2.055
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.86         27.68        5.9600    1   0   1         6
                15.16         34.34        5.8447    0   0   3         2
                17.27        100.00        5.1360    0   1   2         6
                24.33          6.61        3.6588    1   1   0         6
                24.70          5.00        3.6051    1   0   4         6
                28.63         90.80        3.1181    0   2   1         6
                28.79         97.87        3.1013    1   1   3        12
                29.10          2.14        3.0684    0   1   5         6
                29.99         12.34        2.9800    2   0   2         6
                30.59         19.77        2.9223    0   0   6         2
                34.94         19.55        2.5680    0   2   4         6
                38.28          3.85        2.3511    2   0   5         6
                38.65         29.97        2.3295    1   0   7         6
                39.46          1.48        2.2834    1   1   6        12
                45.67         30.01        1.9867    0   3   3         6
                45.67          1.03        1.9867    3   0   3         6
                46.20         12.01        1.9650    0   2   7         6
                46.62          9.74        1.9482    0   0   9         2
                49.85         32.53        1.8294    2   2   0         6
                50.64          5.21        1.8026    2   0   8         6
                52.41          8.86        1.7459    2   2   3        12
                52.89          1.09        1.7312    2   1   7        12
                53.15          6.94        1.7234    3   1   2        12
                56.40          5.67        1.6314    1   3   4        12
                56.95          6.62        1.6170    1   2   8        12
                58.49          6.08        1.5779    4   0   1         6
                58.76          3.30        1.5713    3   1   5        12
                59.27          5.97        1.5591    0   4   2         6
                59.62         16.90        1.5506    2   2   6        12
                60.33         22.66        1.5342    0   2  10         6
                62.32          5.65        1.4900    4   0   4         6
                64.29          1.35        1.4489    3   2   1        12
                64.54          4.72        1.4438    0   4   5         6
                64.80          2.78        1.4388    1   3   7        12
                65.03          5.24        1.4343    2   3   2        12
                65.14          2.43        1.4321    0   3   9         6
                65.56          4.20        1.4240    2   0  11         6
                67.93          1.63        1.3800    3   2   4        12
                69.24          1.47        1.3570    1   1  12        12
                69.90          3.12        1.3458    1   4   3        12
                69.90          4.59        1.3458    4   1   3        12
                70.30          3.78        1.3390    4   0   7         6
                70.63          6.56        1.3336    2   2   9        12
                71.52          1.68        1.3192    1   0  13         6
                75.63          5.99        1.2574    3   2   7        12
                76.78          1.04        1.2413    1   3  10        12
                79.81          1.57        1.2017    0   3  12         6
                80.36          1.57        1.1949    2   4   1        12
                81.96          3.66        1.1755    4   0  10         6
                81.98          4.18        1.1753    2   1  13        12
                83.72          1.35        1.1553    2   4   4        12
                84.95          1.60        1.1417    2   2  12        12
                85.72          2.19        1.1334    4   2   5        12
                86.64          2.55        1.1237    0   4  11         6
                87.99          1.35        1.1099    1   2  14        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.