Gmelinite-Ca
      Sacerdoti M, Passaglia E, Carnevali R
      Zeolites 15 (1995) 276-281
      Structural refinements of Na-, K-, and Ca-exchanged gmelinites
      Note: sample 3Ca, natural sample is cation exchanged with Ca
      Locality: San Giorgio perlena, Fara Vincentina, Vicenza, Italy
      _database_code_amcsd 0015870

      CELL PARAMETERS:   13.8070  13.8070   9.7920   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1616.593
      Density (g/cm3):      2.119
      MAX. ABS. INTENSITY / VOLUME**2:      33.38963411    
      RIR:      5.130
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.39        100.00       11.9572    1   0   0         6
                11.68          8.86        7.5758    1   0   1        12
                12.82          2.91        6.9035    1   1   0         6
                14.82          3.43        5.9786    2   0   0         6
                17.38          3.04        5.1027    2   0   1        12
                18.12         16.50        4.8960    0   0   2         2
                19.59          2.15        4.5309    1   0   2        12
                19.64          3.52        4.5194    2   1   0        12
                21.66         21.59        4.1034    2   1   1        24
                23.49          1.06        3.7879    2   0   2        12
                25.81          3.79        3.4518    2   2   0         6
                26.88          1.31        3.3163    3   1   0        12
                28.34         11.50        3.1488    1   0   3        12
                29.89         11.86        2.9893    4   0   0         6
                31.22          1.93        2.8649    2   0   3        12
                31.29          7.57        2.8590    4   0   1        12
                31.72          1.55        2.8211    2   2   2        12
                33.88         10.93        2.6461    2   1   3        24
                34.37          3.07        2.6093    4   1   0        12
                39.15          1.01        2.3012    3   3   0         6
                43.45          4.20        2.0826    3   3   2        12
                47.11          1.24        1.9291    5   0   3        12
                50.81          1.97        1.7969    2   1   5        24
                50.94          1.58        1.7926    6   1   1        24
                51.17          2.22        1.7853    4   1   4        24
                53.06          3.04        1.7259    4   4   0         6
                53.57          1.13        1.7107    5   0   4        12
                57.93          1.83        1.5919    6   1   3        24
                67.59          1.22        1.3861    5   4   3        24
                67.72          1.56        1.3836    4   1   6        24
                70.94          1.40        1.3286    9   0   0         6
                74.96          1.04        1.2670    4   0   7        12
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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.