NH4Cr(SO4)2*12H2O
      Rempfer N, Lerner H W, Bolte M
      Acta Crystallographica E60 (2004) i80-i81
      The ammonium chromium(III) alum NH4Cr(SO4)2*12H2O

      CELL PARAMETERS:  12.2491 12.2491 12.2491   90.000   90.000   90.000
      SPACE GROUP: Pa3       
      X-RAY WAVELENGTH:     1.541838
      MAX. ABS. INTENSITY / VOLUME**2:      6.753993936    
               2-THETA      INTENSITY    D-SPACING   H   K   L
                12.52         71.92        7.0720    1   1   1
                16.18         31.36        5.4780    2   1   0
                17.74         15.29        5.0007    2   1   1
                20.51        100.00        4.3307    2   2   0
                21.77         45.81        4.0830    2   2   1
                24.10         55.38        3.6932    3   1   1
                26.23          1.84        3.3973    3   0   2
                27.24         23.61        3.2737    3   2   1
                27.24         53.26        3.2737    3   1   2
                29.16         42.87        3.0623    4   0   0
                30.08         13.62        2.9708    4   1   0
                30.08          1.80        2.9708    3   2   2
                30.97          8.27        2.8871    4   1   1
                31.84         11.07        2.8101    3   3   1
                32.69         18.29        2.7390    4   2   0
                33.53          7.15        2.6730    4   1   2
                34.34         11.95        2.6115    3   3   2
                35.92          8.63        2.5003    4   2   2
                37.44          3.17        2.4022    4   3   1
                38.18          7.71        2.3573    5   1   1
                38.18          2.94        2.3573    3   3   3
                39.62          3.34        2.2746    4   3   2
                40.33          5.46        2.2364    5   1   2
                41.71          3.56        2.1654    4   4   0
                42.39          5.80        2.1323    4   4   1
                43.06          1.62        2.1007    4   3   3
                43.72          3.94        2.0705    5   3   1
                43.72         15.79        2.0705    5   1   3
                44.37          9.97        2.0415    6   0   0
                45.02          7.14        2.0137    6   1   0
                45.66          2.78        1.9871    6   1   1
                45.66          5.92        1.9871    5   3   2
                46.91         21.20        1.9368    6   0   2
                46.91          6.43        1.9368    6   2   0
                48.14          1.01        1.8901    5   1   4
                48.75          1.31        1.8680    5   3   3
                49.35          1.55        1.8466    6   2   2
                49.95          2.48        1.8260    5   4   2
                49.95          1.75        1.8260    5   2   4
                50.54          6.45        1.8060    6   3   1
                52.85          2.06        1.7323    5   4   3
                53.42         10.37        1.7152    7   1   1
                53.42          2.51        1.7152    5   5   1
                53.98          6.15        1.6986    6   4   0
                54.54          1.38        1.6825    6   4   1
                56.20          5.21        1.6369    6   4   2
                56.20          6.49        1.6369    6   2   4
                56.74          5.20        1.6224    7   2   2
                57.82          2.95        1.5947    7   3   1
                57.82          4.43        1.5947    5   5   3
                59.41          1.59        1.5556    6   5   1
                61.50          1.63        1.5078    7   1   4
                62.02          1.98        1.4965    7   3   3
                62.53          3.21        1.4854    8   0   2
                62.53          3.18        1.4854    8   2   0
                63.04          1.54        1.4746    7   2   4
                64.56          5.66        1.4436    6   6   0
                65.56          1.52        1.4239    7   4   3
                66.06          1.89        1.4144    7   5   1
                66.06          4.68        1.4144    7   1   5
                66.55          1.45        1.4051    6   6   2
                68.52          1.54        1.3695    8   0   4
                69.00          4.20        1.3610    8   4   1
                70.94          1.27        1.3286    7   0   6
                71.42          1.02        1.3209    9   2   1
                72.37          3.06        1.3058    6   6   4
                72.85          1.58        1.2984    9   2   2
                76.14          1.15        1.2502    8   4   4
                77.54          1.57        1.2311    7   7   1
                77.54          1.91        1.2311    7   5   5
                79.86          4.68        1.2011    8   6   2
                79.86          1.58        1.2011    8   2   6
                81.24          1.74        1.1842    7   7   3
                81.70          1.35        1.1787    6   6   6
                85.81          1.27        1.1324   10   4   1
                88.08          1.59        1.1090    9   4   5
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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.