Voltaite
      Mereiter K
      Tschermaks Mineralogische und Petrographische Mitteilungen 18 (1972) 185-202
      Die kristallstruktur des voltaits, K2Fe2+5Fe3+3Al[SO4]12*18H2O
      _database_code_amcsd 0015642

      CELL PARAMETERS:   27.2540  27.2540  27.2540   90.000   90.000   90.000
      SPACE GROUP: Fd3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:  20243.740
      Density (g/cm3):      2.606
      MAX. ABS. INTENSITY / VOLUME**2:      10.34767933    
      RIR:      1.293
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 9.18         36.03        9.6357    2   2   0        12
                11.25         20.21        7.8676    2   2   2         8
                12.99         29.96        6.8135    4   0   0         6
                15.93         73.66        5.5632    4   2   2        24
                18.42          1.31        4.8179    4   4   0        12
                20.61          2.15        4.3092    6   2   0        24
                21.63         11.16        4.1087    6   2   2        24
                22.60          3.47        3.9338    4   4   4         8
                24.44         20.30        3.6420    6   4   2        48
                25.10         77.50        3.5482    7   3   1        48
                26.16        100.00        3.4067    8   0   0         6
                27.78         15.12        3.2119    8   2   2        24
                28.36         24.52        3.1470    7   5   1        48
                29.31         41.81        3.0471    8   4   0        24
                29.87          5.14        2.9915    7   5   3        48
                30.78          2.43        2.9053    6   6   4        24
                31.31         35.41        2.8570    9   3   1        48
                32.18          6.59        2.7816    8   4   4        24
                34.03         10.87        2.6347    9   5   1        48
                34.19          8.57        2.6225    6   6   6         8
                35.32         13.36        2.5414    9   5   3        48
                35.47          1.63        2.5305    8   6   4        48
                36.10          5.62        2.4879   10   4   2        48
                37.33         10.66        2.4089    8   8   0        12
                37.93          1.93        2.3722    8   8   2        24
                38.96          5.59        2.3117    9   7   3        48
                39.11          1.94        2.3034   10   6   2        48
                39.69          1.16        2.2712    8   8   4        24
                39.69         12.29        2.2712   12   0   0         6
                40.11          3.53        2.2479   11   5   1        48
                41.24          5.60        2.1891   11   5   3        48
                41.24         10.02        2.1891    9   7   5        48
                42.48          2.02        2.1282   12   4   2        48
                42.48          2.89        2.1282    8   8   6        24
                43.42         25.06        2.0842   11   7   1        48
                44.08          5.01        2.0543   12   4   4        24
                44.48          1.34        2.0371   13   3   1        48
                44.48          1.29        2.0371   11   7   3        48
                44.61          2.50        2.0314   10   8   4        48
                45.13          5.11        2.0092   12   6   2        48
                46.15          2.14        1.9669    8   8   8         8
                46.66          1.15        1.9467   12   6   4        48
                47.16          2.32        1.9271   14   2   0        24
                47.66          5.78        1.9082   14   2   2        24
                48.15          6.49        1.8897   12   8   0        24
                48.64          4.07        1.8718   12   8   2        48
                50.09          6.22        1.8210   12   8   4        48
                50.45          2.06        1.8089   13   7   3        48
                51.40          7.33        1.7779   15   3   1        48
                51.51          1.02        1.7741   10  10   6        24
                52.44          1.39        1.7448   12   8   6        48
                52.90          1.59        1.7306   14   6   4        48
                52.90          1.43        1.7306   12  10   2        48
                53.25          3.62        1.7203   13   9   1        48
                53.25          1.57        1.7203   11   9   7        48
                53.82          1.56        1.7034   16   0   0         6
                54.72          3.93        1.6774   14   8   2        48
                54.72          1.66        1.6774   10  10   8        24
                55.17          5.42        1.6648   14   6   6        24
                55.62          1.34        1.6525   16   4   0        24
                56.50          2.65        1.6287   12  10   6        48
                56.83          1.28        1.6201   15   7   3        48
                57.38          1.68        1.6060   12  12   0        12
                57.38         16.95        1.6060   16   4   4        24
                57.81          3.43        1.5949   12  12   2        24
                58.57          1.44        1.5761   13  11   3        48
                58.57          3.73        1.5761   17   3   1        48
                58.67          4.61        1.5735   14  10   2        48
                59.10          2.37        1.5631   12  12   4        24
                59.53          3.04        1.5529   12  10   8        48
                60.27          1.31        1.5356   13  11   5        48
                60.27          4.47        1.5356   17   5   1        48
                60.27          1.82        1.5356   15   9   3        48
                60.80          1.62        1.5235   16   8   0        24
                61.22          1.04        1.5141   12  12   6        24
                61.22          2.16        1.5141   14   8   8        24
                62.05          1.99        1.4958   14  10   6        48
                62.46          2.53        1.4868   16   8   4        48
                62.77          1.48        1.4802   17   7   1        48
                63.29          1.51        1.4694   18   4   2        48
                63.59          2.28        1.4631   15  11   1        48
                64.11          4.19        1.4526   12  12   8        24
                64.51          1.68        1.4445   16   8   6        48
                64.92          1.70        1.4364   18   6   0        24
                65.22          5.50        1.4305   17   7   5        48
                65.32          1.49        1.4285   18   6   2        48
                66.53          1.99        1.4055   14  12   6        48
                68.41          1.02        1.3713   17   9   5        48
                68.41          3.17        1.3713   15  13   1        48
                68.91          1.48        1.3627   16  12   0        24
                70.47          1.12        1.3362   20   4   0        24
                70.47          6.35        1.3362   16  12   4        48
                71.25          1.81        1.3236   18   8   6        48
                73.94          1.03        1.2819   18   8   8        24
                74.32          1.58        1.2763   16  10  10        24
                74.60          1.14        1.2721   17  13   1        48
                79.12          1.58        1.2104   19  11   5        48
                79.96          1.28        1.1998   16  14   8        48
                80.71          1.24        1.1906   18  14   2        48
                81.08          1.50        1.1861   16  16   4        24
                82.10          1.49        1.1739   19  13   3        48
                82.56          1.72        1.1685   16  12  12        24
                82.56          1.92        1.1685   20  12   0        24
                83.58          1.12        1.1569   19  13   5        48
                88.45          4.78        1.1053   24   4   4        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.