Weberite
      Knop O, Cameron T S, Jochem K
      Journal of Solid State Chemistry 43 (1982) 213-221
      What is the true space group of weberite?
      Locality: Ivigtut, Greenland
      Sample: I2_12_12_1 refinement, T = 133 K
      Note: y(F6) and z(F6) corrected
      _database_code_amcsd 0013482

      CELL PARAMETERS:    7.0500   9.9790   7.2970   90.000   90.000   90.000
      SPACE GROUP: I2_12_12_1
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    513.358
      Density (g/cm3):      2.979
      MAX. ABS. INTENSITY / VOLUME**2:      6.897106029    
      RIR:      0.754
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.04         25.93        5.8902    0   1   1         4
                17.49         36.05        5.0702    1   0   1         4
                17.78          4.24        4.9895    0   2   0         2
                24.40          1.79        3.6485    0   0   2         2
                25.04         23.75        3.5563    1   2   1         4
                28.97          3.27        3.0819    1   1   2         4
                29.51          9.59        3.0267    0   3   1         4
                29.53         12.21        3.0247    2   1   1         4
                30.35        100.00        2.9451    0   2   2         4
                31.06         89.00        2.8790    2   2   0         4
                35.41          5.24        2.5351    2   0   2         4
                36.00          2.02        2.4948    0   4   0         2
                38.08         32.05        2.3631    0   1   3         4
                38.80          7.39        2.3211    1   3   2         4
                39.23         50.68        2.2963    2   3   1         4
                39.89          3.27        2.2601    2   2   2         4
                40.29         15.27        2.2385    1   4   1         4
                40.32         22.68        2.2369    3   0   1         4
                43.33          3.15        2.0883    1   2   3         4
                43.97          2.83        2.0594    0   4   2         4
                44.49          8.49        2.0364    2   4   0         4
                46.24         23.65        1.9634    0   3   3         4
                46.88         21.70        1.9380    3   1   2         4
                50.00         11.59        1.8242    0   0   4         2
                51.39         95.07        1.7781    2   4   2         4
                51.88         23.81        1.7625    4   0   0         2
                52.63          5.10        1.7391    1   1   4         4
                53.42          2.18        1.7153    2   3   3         4
                53.48          1.74        1.7133    0   2   4         4
                53.96          3.70        1.6993    1   5   2         4
                53.98          5.56        1.6986    3   3   2         4
                54.25          2.00        1.6907    1   4   3         4
                55.15          7.90        1.6654    3   4   1         4
                55.23          5.78        1.6632    0   6   0         2
                57.58          1.17        1.6007    3   2   3         4
                58.13          1.82        1.5870    4   0   2         4
                59.24          4.49        1.5599    1   3   4         4
                60.04         43.13        1.5409    2   2   4         4
                60.82          7.07        1.5231    4   3   1         4
                61.25         15.53        1.5133    0   6   2         4
                61.29         17.81        1.5124    4   2   2         4
                61.66          5.66        1.5041    2   6   0         4
                63.14          6.98        1.4726    0   4   4         4
                64.76         10.24        1.4395    4   4   0         4
                65.44          1.10        1.4262    3   1   4         4
                66.11          3.59        1.4134    2   5   3         4
                66.87          3.60        1.3992    3   4   3         4
                67.34          4.00        1.3906    2   6   2         4
                67.68          2.50        1.3844    5   0   1         4
                69.13          1.68        1.3588    2   4   4         4
                70.47          4.36        1.3363    2   1   5         4
                70.57          2.01        1.3347    3   6   1         4
                70.61          1.22        1.3340    5   2   1         4
                71.33          1.58        1.3223    3   3   4         4
                72.71          1.27        1.3004    2   7   1         4
                74.92          6.65        1.2675    4   0   4         4
                76.35          6.24        1.2474    0   8   0         2
                76.90          2.88        1.2398    3   0   5         4
                77.63          2.80        1.2299    0   7   3         4
                78.15          1.62        1.2231    5   3   2         4
                79.12          2.47        1.2105    5   4   1         4
                81.45          2.52        1.1816    0   2   6         4
                82.01          2.02        1.1750    6   0   0         2
                82.58          1.01        1.1683    3   5   4         4
                83.25          5.97        1.1605    2   6   4         4
                83.65          3.25        1.1560    3   7   2         4
                84.22          6.08        1.1497    2   0   6         4
                84.36         12.85        1.1482    4   6   2         4
                84.76          4.10        1.1437    6   2   0         4
                86.03          3.52        1.1300    4   4   4         4
                87.07          5.06        1.1192    2   8   2         4
                87.15          3.30        1.1184    6   0   2         4
                88.05          1.01        1.1093    1   7   4         4
                88.11          1.57        1.1087    5   1   4         4
                89.69          1.47        1.0932    0   4   6         4
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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.