Bannisterite
      Heaney P J, Post J E, Evans H T
      Clays and Clay Minerals 40 (1992) 129-144
      The crystal structure of bannisterite
      Locality: Franklin Furnace, New Jersey, USA
      _database_code_amcsd 0012234

      CELL PARAMETERS:   22.2650  16.3680  24.6680   90.000   94.285   90.000
      SPACE GROUP: A2/a      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   8964.717
      Density (g/cm3):      2.756
      MAX. ABS. INTENSITY / VOLUME**2:      47.32278837    
      RIR:      5.590
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.19        100.00       12.2995    0   0   2         2
                 7.75          1.25       11.4055    1   1   1         4
                10.07          1.15        8.7868   -2   1   1         4
                10.48          1.15        8.4375    2   1   1         4
                12.46          1.08        7.1043   -1   1   3         4
                14.40          1.23        6.1498    0   0   4         2
                19.32          3.06        4.5938    4   2   0         4
                20.78          1.30        4.2745   -5   1   1         4
                21.68          4.15        4.0998    0   0   6         2
                21.72          1.35        4.0920    0   4   0         2
                23.44          2.73        3.7946   -4   2   4         4
                24.90          1.79        3.5759    4   2   4         4
                25.93          2.82        3.4359    0   1   7         4
                25.95          2.99        3.4336   -1   1   7         4
                26.16          1.85        3.4068    0   4   4         4
                26.54          3.05        3.3586    1   1   7         4
                29.04          6.01        3.0749    0   0   8         2
                32.09          4.56        2.7894    4   5   1         4
                32.14          1.09        2.7852    3   5   3         4
                32.54          3.68        2.7518   -8   0   2         2
                34.01         10.16        2.6359    4   5   3         4
                34.45          5.62        2.6037   -8   0   4         2
                36.11          1.14        2.4875   -4   5   5         4
                36.27          1.34        2.4768    5   5   3         4
                37.35          5.64        2.4073    4   5   5         4
                37.76          3.55        2.3824   -8   0   6         2
                40.24          1.57        2.2412   -4   5   7         4
                40.59          1.20        2.2225    8   0   6         2
                41.83          2.61        2.1596    4   5   7         4
                42.20          1.14        2.1414   -8   0   8         2
                45.32          1.00        2.0009   -4   5   9         4
                47.18          1.31        1.9264    4   5   9         4
                57.06          2.63        1.6142  -12   5   1         4
                57.59          1.37        1.6005   12   5   1         4
                57.60          1.51        1.6004  -12   5   3         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.