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: Li-mont
      _database_code_amcsd 0009126

      CELL PARAMETERS:    5.1750   8.8960  12.4500   90.000   99.690   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    564.981
      Density (g/cm3):      1.777
      MAX. ABS. INTENSITY / VOLUME**2:      63.75693068    
      RIR:     11.685
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.20        100.00       12.2724    0   0   1         2
                14.43          7.36        6.1362    0   0   2         2
                19.96          8.40        4.4480    0   2   0         2
                20.31          4.87        4.3715   -1   1   1         4
                21.25          2.90        4.1818    0   2   1         4
                21.72          1.93        4.0908    0   0   3         2
                22.33          1.58        3.9815    1   1   1         4
                23.00          3.26        3.8671   -1   1   2         4
                24.72          1.13        3.6014    0   2   2         4
                29.11          1.59        3.0681    0   0   4         2
                31.89          1.61        2.8066    1   1   3         4
                35.15          1.15        2.5531   -1   3   1         4
                36.40          2.65        2.4680    1   3   1         4
                36.61          1.22        2.4545    0   0   5         2
                36.84          2.51        2.4401   -1   3   2         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.