Willhendersonite
      Fischer R X, Kahlenberg V, Lengauer C L, Tillmanns E
      American Mineralogist 93 (2008) 1317-1325
      Thermal behavior and structural transformation in the chabazite-type zeolite
      willhendersonite, KCaAl3Si3O12*5H2O
      Locality: Mayen, Eifel district, Germany
      Note: T = 423K
      _database_code_amcsd 0004629

      CELL PARAMETERS:    9.4110   9.4110   9.4110   91.480   91.480   91.480
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    832.655
      Density (g/cm3):      1.697
      MAX. ABS. INTENSITY / VOLUME**2:      23.68752486    
      RIR:      4.544
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 9.40        100.00        9.4046    1   0   0         6
                13.14         39.07        6.7400    0  -1   1         6
                13.49          4.82        6.5636    1   1   0         6
                20.90         18.92        4.2512    0  -1   2         6
                20.90         10.62        4.2512   -1   0   2         6
                22.85          2.06        3.8913    1  -2   1         6
                23.06          1.46        3.8565    1  -1   2         6
                23.68          5.77        3.7573    2   1   1         6
                26.45          1.19        3.3700    0  -2   2         6
                27.17          3.55        3.2818    2   2   0         6
                28.13          1.25        3.1725    1  -2   2         6
                29.15          6.03        3.0635    2   2   1         6
                30.29          1.46        2.9506    3   0   1         6
                30.29          1.67        2.9506    3   1   0         6
                31.16         17.89        2.8704   -1  -1   3         6
                32.09          2.35        2.7889    3   1   1         6
                32.69          1.07        2.7392    2  -2   2         6
                33.88          1.35        2.6456    2   2   2         2
                34.81          1.15        2.5770    3   0   2         6
                34.81          1.71        2.5770    3   2   0         6
                40.26          2.55        2.2399   -1  -1   4         6
                41.26          2.86        2.1879    4   1   1         6
                42.05          1.16        2.1486    3  -1   3         6
                48.39          1.52        1.8809    5   0   0         6
                49.68          1.04        1.8351    5   0   1         6
                54.45          1.95        1.6850    0  -4   4         6
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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.