Magadiite
      Garces J M, Rocke S C, Crowder C E, Hasha D L
      Clays and Clay Minerals 36 (1988) 409-418
      Hypothetical structures of magadiite and sodium octosilicate and structural
      relationships between the layered alkali metal silicates and the mordenite- and
      pentasil-group zeolites
      Note: hypothetical model structure
      Note: setting changed from left- to right-handed
      _database_code_amcsd 0012231

      CELL PARAMETERS:   27.5000   7.5200   9.2000   90.000  101.000   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1867.605
      Density (g/cm3):      1.339
      MAX. ABS. INTENSITY / VOLUME**2:      48.69597030    
      RIR:     11.843
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 6.55        100.00       13.4974    2   0   0         2
                 9.79          2.25        9.0310    0   0   1         2
                12.22          9.09        7.2442    1   1   0         4
                19.24          1.25        4.6131    3   1   1         4
                19.50          2.22        4.5515   -2   0   2         2
                19.66          3.76        4.5155    0   0   2         2
                20.25          5.95        4.3857    5   1   0         4
                21.49          4.83        4.1353   -4   0   2         2
                21.92          5.05        4.0557    2   0   2         2
                23.75          1.03        3.7468    1   1   2         4
                24.58          5.96        3.6221    2   2   0         4
                25.13          1.71        3.5430   -6   0   2         2
                25.75          1.75        3.4601    4   0   2         2
                25.97          1.39        3.4315    7   1   0         4
                27.15          4.29        3.2846    4   2   0         4
                34.79          1.06        2.5786   -6   2   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.