Tschermigite
      Abdeen A M, Will G, Schaefer W, Kirfel A, Bargouth M O, Recker K, Weiss A
      Zeitschrift fur Kristallographie 157 (1981) 147-166
      X-ray and neutron diffraction study of alums
      II. The crystal structure of methylammonium aluminium alum
      III. The crystal structure of ammonium aluminium alum
      Locality: synthetic
      Sample: X-ray data
      _database_code_amcsd 0010843

      CELL PARAMETERS:   12.2420  12.2420  12.2420   90.000   90.000   90.000
      SPACE GROUP: Pa3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1834.666
      Density (g/cm3):      6.766
      MAX. ABS. INTENSITY / VOLUME**2:      261.1104707    
      RIR:     12.566
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.47        100.00        6.1210    2   0   0         6
                16.19         92.95        5.4748    2   1   0        12
                17.75         18.06        4.9978    2   1   1        24
                20.52         21.61        4.3282    2   2   0        12
                21.78         10.87        4.0807    2   2   1        24
                24.11          3.02        3.6911    3   1   1        24
                26.25          5.63        3.3953    3   0   2        12
                27.26          2.63        3.2718    3   2   1        24
                27.26         21.91        3.2718    3   1   2        24
                29.18          7.92        3.0605    4   0   0         6
                31.86          1.78        2.8085    3   3   1        24
                32.71          6.39        2.7374    4   0   2        12
                33.55         11.82        2.6714    4   1   2        24
                34.36          3.79        2.6100    3   3   2        24
                37.46          2.34        2.4009    4   3   1        24
                39.65          7.72        2.2733    4   3   2        24
                40.35          4.23        2.2351    5   1   2        24
                42.42         10.60        2.1311    4   4   1        24
                43.09          4.70        2.0995    4   3   3        24
                44.40          1.16        2.0403    4   4   2        24
                44.40          1.28        2.0403    6   0   0         6
                45.05          1.03        2.0126    6   1   0        12
                45.68          1.98        1.9859    5   3   2        24
                45.68          1.43        1.9859    5   2   3        24
                46.94         12.90        1.9356    6   0   2        12
                47.56          1.92        1.9119    4   4   3        24
                47.56          2.82        1.9119    6   2   1        24
                47.56          1.46        1.9119    6   1   2        24
                47.56          2.18        1.9119    5   0   4        12
                48.17          1.03        1.8890    5   1   4        24
                49.38          4.22        1.8456    6   2   2        24
                49.98          1.04        1.8249    5   4   2        24
                52.31          1.55        1.7489    6   3   2        24
                52.31          1.53        1.7489    6   2   3        24
                52.88          1.54        1.7313    5   3   4        24
                54.01          2.42        1.6977    6   0   4        12
                55.13          1.12        1.6659    5   5   2        24
                56.23          1.30        1.6359    6   4   2        24
                56.23          4.29        1.6359    6   2   4        24
                56.78          2.54        1.6215    7   2   2        24
                69.05          1.62        1.3602    8   4   1        24
                79.91          1.64        1.2004    8   6   2        24
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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.