Vermiculite
      de la Calle C, Pezerat H, Gasperin M
      Journal de Physique 38 (1977) 128-133
      Problemes d'ordre-desordre dans les vermiculites structure du mineral
      calcique hydrate a 2 couches
      _cod_database_code 1001031
      _database_code_amcsd 0012759

      CELL PARAMETERS:    5.3510   9.2620  15.0300   90.000   96.830   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    739.615
      Density (g/cm3):      1.979
      MAX. ABS. INTENSITY / VOLUME**2:      66.13636796    
      RIR:     10.882
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 5.92        100.00       14.9233    0   0   1         2
                17.83          2.06        4.9744    0   0   3         2
                19.17          1.71        4.6310    0   2   0         2
                19.26          2.23        4.6086    1   1   0         4
                20.75          2.32        4.2807    1   1   1         4
                21.59          3.22        4.1154   -1   1   2         4
                22.60          1.93        3.9348    0   2   2         4
                23.85          1.29        3.7308    0   0   4         2
                26.29          1.21        3.3895    0   2   3         4
                27.71          1.84        3.2192    1   1   3         4
                29.94          2.99        2.9847    0   0   5         2
                33.76          1.17        2.6553   -1   3   1         4
                34.48          1.52        2.6009    1   3   1         4
                35.02          2.23        2.5624   -1   3   2         4
                37.25          1.51        2.4136    2   0   2         2
                37.26          2.75        2.4130   -1   3   3         4
                59.89          1.41        1.5444   -3   3   1         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.