Vikingite
      Makovicky E, Mumme W G, Madsen I C
      Neues Jahrbuch fur Mineralogie, Monatshefte 1992 (1992) 454-468
      The crystal structure of vikingite
      Locality: La Roche Balue, France
      _database_code_amcsd 0014865

      CELL PARAMETERS:   13.5980   4.1120  25.2490   90.000   95.590   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1405.083
      Density (g/cm3):      7.109
      MAX. ABS. INTENSITY / VOLUME**2:      74.84438291    
      RIR:      3.428
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 3.52         11.38       25.1289    0   0   1         2
                 7.04          6.07       12.5645    0   0   2         2
                10.56          1.71        8.3763    0   0   3         2
                13.21          2.06        6.6998   -2   0   1         2
                13.88          1.36        6.3798    2   0   1         2
                15.47          1.48        5.7292    2   0   2         2
                17.63          2.25        5.0297    2   0   3         2
                20.97          5.17        4.2371   -2   0   5         2
                22.60          1.27        3.9344    1   1   0         4
                22.78          1.56        3.9040   -1   1   1         4
                23.05         18.52        3.8588    2   0   5         2
                23.87         19.62        3.7274   -2   0   6         2
                23.89          9.71        3.7247    1   1   2         4
                24.73         33.97        3.6006   -1   1   3         4
                25.28         30.00        3.5229    1   1   3         4
                26.09         86.61        3.4154    2   0   6         2
                26.23         20.97        3.3971   -4   0   1         2
                26.34         12.70        3.3833    4   0   0         2
                26.39         80.93        3.3778   -1   1   4         4
                26.61         32.54        3.3499   -4   0   2         2
                26.93          9.49        3.3107    4   0   1         2
                26.96         70.20        3.3074   -2   0   7         2
                27.08         25.92        3.2928    1   1   4         4
                27.45          7.84        3.2489   -4   0   3         2
                27.97          3.00        3.1899    4   0   2         2
                28.41          7.14        3.1415   -1   1   5         4
                28.41          2.23        3.1411    0   0   8         2
                29.22          4.31        3.0563    1   1   5         4
                29.28          8.81        3.0506    2   0   7         2
                29.37         10.66        3.0408   -3   1   1         4
                29.39          1.24        3.0389    3   1   0         4
                29.79         28.74        2.9991   -3   1   2         4
                29.85         47.66        2.9936    3   1   1         4
                30.18         34.21        2.9614   -2   0   8         2
                30.63         37.78        2.9188   -3   1   3         4
                30.72        100.00        2.9105    3   1   2         4
                31.86         22.52        2.8089   -3   1   4         4
                31.98         17.65        2.7985    3   1   3         4
                32.58          8.54        2.7487    2   0   8         2
                33.44          1.48        2.6795   -3   1   5         4
                33.51          6.94        2.6745   -2   0   9         2
                33.59          2.66        2.6679    3   1   4         4
                35.33          1.03        2.5402   -3   1   6         4
                35.97          1.89        2.4967    2   0   9         2
                39.03          8.55        2.3081   -1   1   9         4
                40.13         22.74        2.2472    1   1   9         4
                42.12         17.59        2.1455   -1   1  10         4
                42.24          5.72        2.1394    5   1   3         4
                42.29          4.40        2.1370   -6   0   5         2
                42.49         10.80        2.1276   -5   1   5         4
                42.51          8.28        2.1266    6   0   3         2
                43.27         34.02        2.0911    1   1  10         4
                43.64         10.37        2.0742    5   1   4         4
                43.69          8.21        2.0719   -6   0   6         2
                43.94         32.01        2.0608   -5   1   6         4
                43.95         17.70        2.0600    6   0   4         2
                44.01          1.17        2.0574    4   0   9         2
                44.04         41.65        2.0560    0   2   0         2
                45.30         13.32        2.0018    5   1   5         4
                45.34          6.46        2.0003   -1   1  11         4
                45.35          3.46        1.9996   -6   0   7         2
                45.54          1.54        1.9920    3   1   9         4
                45.65         10.54        1.9874   -5   1   7         4
                45.66          1.65        1.9868    6   0   5         2
                46.53          1.04        1.9517    1   1  11         4
                47.01         15.82        1.9330    0   0  13         2
                47.21          2.63        1.9251    5   1   6         4
                47.61          4.66        1.9101   -5   1   8         4
                47.62          1.07        1.9097    6   0   6         2
                48.24         10.57        1.8865   -3   1  11         4
                48.50          6.39        1.8770    3   1  10         4
                48.87          2.65        1.8637   -4   0  12         2
                49.35          7.91        1.8465    5   1   7         4
                49.41          2.86        1.8446   -6   0   9         2
                49.79          2.14        1.8314   -5   1   9         4
                49.79          1.39        1.8312    6   0   7         2
                50.28          3.35        1.8145    2   2   5         4
                50.32          6.37        1.8131    4   0  11         2
                50.71          3.71        1.8003   -2   2   6         4
                51.34          7.55        1.7798   -3   1  12         4
                51.61          3.74        1.7711    3   1  11         4
                51.70          5.52        1.7680    5   1   8         4
                51.76          3.46        1.7663   -6   0  10         2
                51.91         19.71        1.7615    2   2   6         4
                51.99          5.19        1.7589   -4   2   1         4
                52.05          2.96        1.7570    4   2   0         4
                52.08         11.41        1.7561   -7   1   1         4
                52.14          2.75        1.7541   -7   1   2         4
                52.16          3.68        1.7536   -4   0  13         2
                52.17          2.44        1.7531   -5   1  10         4
                52.18          1.28        1.7530    6   0   8         2
                52.20          7.46        1.7523   -4   2   2         4
                52.29          4.35        1.7496    7   1   0         4
                52.38          2.42        1.7466    4   2   1         4
                52.40         17.31        1.7461   -2   2   7         4
                52.68          2.10        1.7373   -4   2   3         4
                52.77          1.56        1.7348    7   1   1         4
                53.67          7.41        1.7077    4   0  12         2
                53.77          2.15        1.7049    2   2   7         4
                54.22          1.41        1.6917    8   0   0         2
                54.26          1.74        1.6904   -8   0   3         2
                54.32          9.08        1.6889   -2   2   8         4
                54.74          2.81        1.6769    8   0   1         2
                54.81          7.91        1.6750   -8   0   4         2
                55.51          1.88        1.6554    8   0   2         2
                55.57          2.16        1.6537   -4   0  14         2
                55.61          1.75        1.6527   -8   0   5         2
                55.84          2.71        1.6464    2   2   8         4
                56.45          2.45        1.6300   -2   2   9         4
                59.10          1.50        1.5631   -4   0  15         2
                62.71          2.08        1.4816   -6   2   5         4
                62.75          3.18        1.4807   -4   0  16         2
                62.87          3.93        1.4781    6   2   3         4
                63.77          3.68        1.4594   -6   2   6         4
                63.98          8.25        1.4552    6   2   4         4
                64.42          1.11        1.4463    4   0  15         2
                64.50          2.22        1.4446    1   1  16         4
                65.03          2.68        1.4342   -3   1  16         4
                65.07          1.71        1.4335   -6   2   7         4
                65.35          4.30        1.4280    3   1  15         4
                66.38          8.20        1.4083    0   2  13         4
                67.00          6.22        1.3968   -1   1  17         4
                67.47          2.19        1.3881    8   0   9         2
                67.73          1.23        1.3834   -8   0  12         2
                67.88          1.37        1.3808   -4   2  12         4
                68.32          1.53        1.3730   -6   2   9         4
                68.43          2.15        1.3710    1   1  17         4
                68.78          1.15        1.3650   -3   1  17         4
                69.07          3.54        1.3599    4   2  11         4
                69.10          1.40        1.3593    3   1  16         4
                69.17          2.41        1.3581   -7   1  13         4
                69.76          1.04        1.3481   -1   3   3         4
                70.01          1.15        1.3439    1   3   3         4
                70.26          1.98        1.3398   -6   2  10         4
                70.52          2.70        1.3354   -1   3   4         4
                70.57          6.58        1.3345   -9   1   8         4
                70.59          2.14        1.3342   -4   2  13         4
                70.64          2.29        1.3334    7   1  11         4
                70.74          1.49        1.3318   10   0   2         2
                70.95          6.81        1.3283    9   1   5         4
                71.00          1.86        1.3276   -1   1  18         4
                71.87          4.65        1.3137    4   2  12         4
                71.97          5.70        1.3120   -7   1  14         4
                72.21          1.10        1.3082   -3   3   2         4
                72.24          1.99        1.3078    3   3   1         4
                72.37          1.12        1.3058   -8   2   3         4
                72.57          1.72        1.3026    9   1   6         4
                72.66          1.74        1.3013   -3   3   3         4
                72.70          4.56        1.3006    3   3   2         4
                72.77          1.78        1.2995    8   2   1         4
                72.83          5.02        1.2986   -8   2   4         4
                73.32          1.12        1.2911   -3   3   4         4
                73.44          1.25        1.2894    8   2   2         4
                73.49          1.47        1.2886   -4   2  14         4
                73.52          1.14        1.2881   -8   2   5         4
                73.53          2.03        1.2879    7   1  12         4
                74.42          2.34        1.2748    2   0  19         2
                76.57          1.04        1.2443   -4   2  15         4
                76.61          1.09        1.2438    7   1  13         4
                78.33          1.83        1.2206    1   3   9         4
                79.66          1.51        1.2035   -1   3  10         4
                79.82          2.42        1.2015   -4   2  16         4
                79.86          2.41        1.2011    7   1  14         4
                79.92          1.06        1.2003   -5   3   5         4
                80.46          3.00        1.1937    1   3  10         4
                80.70          1.35        1.1907  -10   0  12         2
                80.92          2.80        1.1880   -5   3   6         4
                81.22          1.31        1.1844   -5   1  19         4
                81.26          6.66        1.1838  -11   1   2         4
                81.89          1.23        1.1763    5   3   5         4
                82.14          1.14        1.1734   -5   3   7         4
                84.05          1.15        1.1515   -3   3  11         4
                84.15          1.74        1.1505    8   2   9         4
                87.01          1.43        1.1199   -7   3   1         4
                87.21          1.23        1.1178   10   2   2         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.