Heulandite
      Wust T, Stolz J, Armbruster T
      American Mineralogist 84 (1999) 1126-1134
      Partially dealuminated heulandite produced by acidic REECl3 solution: A chemical
      and single-crystal X-ray study
      Sample: DEHY323
      Tetrahedral sites were refined as Si

      CELL PARAMETERS:  17.5830 17.6950  7.4080   90.000  116.520   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      MAX. ABS. INTENSITY / VOLUME**2:      13.25019195    
               2-THETA      INTENSITY    D-SPACING   H   K   L
                10.00        100.00        8.8475    0   2   0
                11.25         29.31        7.8664    2   0   0
                12.96         12.54        6.8310   -1   1   1
                13.07          7.34        6.7739   -2   0   1
                13.36          7.66        6.6285    0   0   1
                15.07          5.65        5.8788    2   2   0
                16.05          1.20        5.5230    1   3   0
                16.48          1.12        5.3785   -2   2   1
                16.71          3.14        5.3049    0   2   1
                16.97          7.19        5.2254   -3   1   1
                17.41         18.43        5.0927    1   1   1
                19.24          6.02        4.6136   -1   3   1
                20.47          2.15        4.3377   -4   0   1
                22.51         23.48        3.9496    1   3   1
                22.61          9.22        3.9332    4   0   0
                22.69         19.70        3.9192    3   3   0
                22.83         12.49        3.8948   -4   2   1
                23.07         12.58        3.8559    2   4   0
                23.34          2.53        3.8119    2   2   1
                24.04          2.61        3.7025   -2   0   2
                25.06          4.44        3.5530   -3   1   2
                25.37          1.37        3.5105   -1   1   2
                25.84          1.78        3.4475   -5   1   1
                26.09         11.28        3.4155   -2   2   2
                26.31          6.63        3.3869   -4   0   2
                26.44          1.87        3.3709    3   1   1
                26.90          4.29        3.3143    0   0   2
                28.21          9.70        3.1631   -4   2   2
                28.83          2.98        3.0972   -4   4   1
                29.17          3.93        3.0614   -1   3   2
                29.57          1.80        3.0206   -5   1   2
                30.08          3.61        2.9712   -3   5   1
                30.34          6.73        2.9462    1   5   1
                30.36          2.05        2.9437    1   1   2
                30.47          6.36        2.9335    3   5   0
                30.55          2.61        2.9258   -6   0   1
                32.23          3.02        2.7778   -6   2   1
                32.24          6.83        2.7762    5   3   0
                33.13          3.13        2.7040   -2   6   1
                33.25          2.95        2.6945    0   6   1
                33.65          2.08        2.6636    1   3   2
                35.25          1.41        2.5464    2   2   2
                35.67          1.58        2.5174   -1   5   2
                37.02          2.51        2.4281   -2   0   3
                37.18          1.49        2.4181    2   6   1
                37.38          1.95        2.4060    4   4   1
                38.14          1.30        2.3595    4   6   0
                43.57          1.13        2.0771   -6   6   1
                44.51          1.29        2.0357    3   7   1
                45.08          1.25        2.0111   -6   4   3
                46.58          1.11        1.9498   -1   5   3
                46.98          1.06        1.9341   -9   1   2
                52.20          1.73        1.7525   -7   7   2
                53.61          1.33        1.7096    0  10   1
                57.34          1.30        1.6067    2   6   3
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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.