Montesommaite
      Rouse R C, Dunn P J, Grice J D, Schlenker J L, Higgins J B
      American Mineralogist 75 (1990) 1415-1420
      Montesommaite, (K,Na)9Al9Si23O64.10H2O, a new zeolite related to merlinoite and
      the gismondine group
      _database_code_amcsd 0001338

      CELL PARAMETERS:    7.1410   7.1410  17.3070   90.000   90.000   90.000
      SPACE GROUP: I4_1/amd  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    882.551
      Density (g/cm3):      2.945
      MAX. ABS. INTENSITY / VOLUME**2:      18.96562636    
      RIR:      2.097
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.41         61.36        6.6012    1   0   1         8
                19.78         17.92        4.4876    1   0   3         8
                20.36          5.97        4.3613    1   1   2         8
                20.53         39.82        4.3267    0   0   4         2
                24.94          4.65        3.5705    2   0   0         4
                27.01        100.00        3.3006    2   0   2         8
                28.42         24.70        3.1405    2   1   1        16
                28.66         48.75        3.1148    1   0   5         8
                32.03         29.41        2.7940    2   1   3        16
                32.51          5.39        2.7539    2   0   4         8
                35.56          9.78        2.5247    2   2   0         4
                38.16          2.96        2.3581    3   0   1         8
                38.35         22.22        2.3472    2   1   5        16
                38.53          2.80        2.3364    1   0   7         8
                41.32          4.59        2.1850    3   1   2        16
                41.41         21.28        2.1806    2   2   4         8
                41.75         15.01        2.1634    0   0   8         2
                45.30          2.50        2.0019    3   1   4        16
                46.13          3.36        1.9677    3   2   1        16
                48.60          3.73        1.8732    3   2   3        16
                49.06          2.09        1.8569    1   0   9         8
                49.25          2.01        1.8502    2   0   8         8
                51.17         14.27        1.7852    4   0   0         4
                51.39          3.86        1.7781    3   1   6        16
                53.43          6.46        1.7148    3   0   7         8
                55.63          8.96        1.6522    3   3   2         8
                58.81         11.95        1.5703    4   2   2        16
                59.14          1.75        1.5622    3   1   8        16
                59.34         11.39        1.5574    2   0  10         8
                59.70          2.26        1.5489    4   1   5        16
                59.83         10.11        1.5458    3   2   7        16
                62.04          2.38        1.4959    3   0   9         8
                64.05          1.95        1.4538    3   3   6         8
                65.84          1.87        1.4185    4   1   7        16
                67.57          1.39        1.3863    4   3   3        16
                68.09          1.58        1.3769    4   0   8         8
                68.28          2.36        1.3737    3   1  10        16
                71.33          3.85        1.3222    5   2   1        16
                71.45          4.34        1.3202    5   0   5         8
                71.94          2.18        1.3125    3   0  11         8
                73.24          5.60        1.2923    5   2   3        16
                75.28          2.68        1.2624    4   4   0         4
                75.99          7.99        1.2523    2   2  12         8
                77.01          2.38        1.2383    5   2   5        16
                77.48          1.32        1.2319    3   2  11        16
                78.95          2.87        1.2126    5   3   2        16
                80.74          1.32        1.1902    6   0   0         4
                81.66          1.46        1.1791    6   0   2         8
                81.72          1.28        1.1784    5   3   4        16
                82.13          5.55        1.1736    4   2  10        16
                84.41          1.63        1.1475    6   0   4         8
                84.50          1.56        1.1466    5   0   9         8
                86.12          2.59        1.1291    6   2   0         8
                86.29          1.77        1.1273    5   3   6        16
                86.81          2.51        1.1219    4   0  12         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.