Bannisterite
      Heaney P J, Post J E, Evans H T
      Clays and Clay Minerals 40 (1992) 129-144
      The crystal structure of bannisterite
      Locality: Broken Hill, Australia
      _database_code_amcsd 0012233

      CELL PARAMETERS:   22.2860  16.3860  24.5750   90.000   94.355   90.000
      SPACE GROUP: A2/a      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   8948.348
      Density (g/cm3):      2.830
      MAX. ABS. INTENSITY / VOLUME**2:      54.03447821    
      RIR:      6.217
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.22        100.00       12.2520    0   0   2         2
                 7.75          1.08       11.4006    1   1   1         4
                14.46          2.01        6.1260    0   0   4         2
                19.30          2.83        4.5980    4   2   0         4
                20.76          1.12        4.2787   -5   1   1         4
                21.76          4.63        4.0840    0   0   6         2
                23.45          2.46        3.7937   -4   2   4         4
                24.93          1.56        3.5712    4   2   4         4
                26.03          2.94        3.4233    0   1   7         4
                26.04          2.54        3.4219   -1   1   7         4
                26.17          1.96        3.4053    0   4   4         4
                26.64          2.68        3.3462    1   1   7         4
                29.15          6.14        3.0630    0   0   8         2
                32.06          4.55        2.7919    4   5   1         4
                32.13          1.01        2.7860    3   5   3         4
                32.51          3.51        2.7544   -8   0   2         2
                34.00          9.63        2.6366    4   5   3         4
                34.42          5.56        2.6053   -8   0   4         2
                36.10          1.27        2.4878   -4   5   5         4
                36.26          1.20        2.4776    5   5   3         4
                37.37          5.37        2.4061    4   5   5         4
                37.76          3.37        2.3825   -8   0   6         2
                40.26          1.63        2.2399   -4   5   7         4
                40.64          1.13        2.2198    8   0   6         2
                41.88          2.51        2.1570    4   5   7         4
                42.23          1.11        2.1401   -8   0   8         2
                47.27          1.32        1.9229    4   5   9         4
                57.00          2.38        1.6158  -12   5   1         4
                57.53          1.40        1.6020  -12   5   3         4
                57.54          1.30        1.6018   12   5   1         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.