Parabutlerite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R060754
      Borene J
      Bulletin de la Societe Francaise de Mineralogie et de Cristallographie 93 (1970) 185-189
      Structure cristalline de la parabutlerite

      CELL PARAMETERS:   7.397510   20.06360   7.228106   90.00000   90.00000   90.00000
      SPACE GROUP: Pmnb
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                15.10         29.07        5.8644    0   2   1
                17.14          1.86        5.1699    1   0   1
                17.67        100.00        5.0159    0   4   0
                17.71         23.29        5.0064    1   1   1
                18.06          1.47        4.9089    0   3   1
                21.71          9.66        4.0903    1   3   1
                24.04          3.92        3.6988    2   0   0
                24.62         22.29        3.6141    0   0   2
                25.02          5.39        3.5568    0   1   2
                27.43          5.85        3.2492    2   1   1
                27.81         12.22        3.2055    1   1   2
                28.13          3.18        3.1699    1   5   1
                28.51         86.30        3.1285    2   2   1
                28.88          6.29        3.0894    1   2   2
                29.41          3.18        3.0349    0   6   1
                30.00          1.11        2.9769    2   4   0
                30.58          6.04        2.9211    1   3   2
                34.68          6.76        2.5849    2   0   2
                34.97          3.74        2.5638    2   1   2
                35.54          2.92        2.5243    1   5   2
                35.78         20.10        2.5080    0   8   0
                37.57          3.21        2.3922    0   1   3
                37.85          1.62        2.3752    1   8   0
                38.34          3.05        2.3462    2   6   1
                38.40          7.14        2.3427    0   2   3
                38.62          1.09        2.3296    1   6   2
                39.74          4.50        2.2668    0   3   3
                41.55          1.07        2.1718    0   4   3
                42.02          1.98        2.1489    1   7   2
                42.40          1.44        2.1303    0   9   1
                43.57          3.69        2.0758    2   8   0
                43.91          1.79        2.0604    0   8   2
                44.21          1.09        2.0471    1   9   1
                44.69          1.81        2.0265    3   1   2
                45.10          2.55        2.0087    2   1   3
                45.81          3.63        1.9791    2   2   3
                46.42          2.13        1.9548    0   6   3
                46.58          1.90        1.9485    3   3   2
                46.97          8.45        1.9333    0  10   1
                49.38          1.36        1.8443    0   7   3
                49.23          8.57        1.8494    4   0   0
                49.56          1.00        1.8379    1   9   2
                50.68          5.45        1.8000    2   8   2
                50.69          1.40        1.7997    0   1   4
                51.79          2.36        1.7638    4   2   1
                52.71          2.93        1.7352    4   4   0
                53.44          9.30        1.7133    2  10   1
                54.87          3.96        1.6720    0  12   0
                55.80          5.71        1.6463    4   0   2
                56.17          1.40        1.6363    0   9   3
                56.00          1.52        1.6408    4   1   2
                56.65          2.25        1.6236    2   0   4
                56.85          6.29        1.6183    2   1   4
                58.45          2.01        1.5778    2   3   4
                59.01          2.22        1.5642    4   4   2
                59.95          3.01        1.5418    0  10   3
                59.83          1.80        1.5447    2   4   4
                61.57          1.84        1.5051    2   5   4
                62.33          2.91        1.4885    4   8   0
                63.97          1.33        1.4542    0  11   3
                64.10          2.21        1.4516    4   2   3
                66.09          2.22        1.4127    2   7   4
                66.56          1.67        1.4039    2  12   2
                68.07          2.13        1.3763    4   8   2
                68.83          1.82        1.3629    2   8   4
                69.98          1.10        1.3434    4   6   3
                70.40          2.56        1.3364    4  10   1
                71.88          2.09        1.3124    2   9   4
                76.79          1.40        1.2403    4  12   0
                78.87          1.58        1.2127    2  11   4
                79.35          2.08        1.2065    6   2   1
                81.16          1.60        1.1842    4  10   3
                81.16          1.60        1.1842    4  10   3
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.