Montmorillonite
      Gournis D, Lappas A, Karakassides M A, Tobbens D, Moukarika A
      Physics and Chemistry of Minerals 35 (2008) 49-58
      A neutron diffraction study of alkali cation migration in montmorillonites
      Sample: Cs-mont-300
      _database_code_amcsd 0009129

      CELL PARAMETERS:    5.1910   8.9760  11.3200   90.000  100.560   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    518.516
      Density (g/cm3):      2.000
      MAX. ABS. INTENSITY / VOLUME**2:      51.54580829    
      RIR:      8.391
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.94        100.00       11.1283    0   0   1         2
                15.93          6.12        5.5641    0   0   2         2
                19.78         15.34        4.4880    0   2   0         2
                20.34          4.43        4.3672   -1   1   1         4
                21.35          5.93        4.1623    0   2   1         4
                22.73          2.07        3.9121    1   1   1         4
                23.57          4.67        3.7742   -1   1   2         4
                23.99          1.23        3.7094    0   0   3         2
                25.50          2.85        3.4933    0   2   2         4
                32.17          2.86        2.7821    0   0   4         2
                33.88          1.84        2.6458    1   1   3         4
                34.60          1.47        2.5927   -2   0   1         2
                34.95          1.99        2.5673   -1   3   1         4
                36.46          1.92        2.4646    1   3   1         4
                37.01          3.11        2.4289   -1   3   2         4
                40.94          1.20        2.2042    1   1   4         4
                41.35          2.04        2.1836   -2   2   2         4
                41.55          1.36        2.1733    2   0   2         2
                44.59          1.40        2.0322    1   3   3         4
                56.19          1.29        1.6370    2   4   1         4
                57.25          1.68        1.6093   -2   4   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.