Zippeite
      Burns P C, Deely K M, Hayden L A
      The Canadian Mineralogist 41 (2003) 687-706
      The crystal chemistry of the zippeite group
      Sample: SZIPPNH4II
      _database_code_amcsd 0005850

      CELL PARAMETERS:   14.2520   8.7748  17.1863   90.000   90.000   90.000
      SPACE GROUP: Cmca      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   2149.292
      Density (g/cm3):      4.302
      MAX. ABS. INTENSITY / VOLUME**2:      209.0467864    
      RIR:     15.822
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                10.29         13.47        8.5932    0   0   2         2
                12.42        100.00        7.1260    2   0   0         2
                12.92          2.64        6.8525    1   1   1         8
                16.16         10.05        5.4853    2   0   2         4
                20.67          4.96        4.2966    0   0   4         2
                20.90          8.91        4.2511    0   2   1         4
                21.89          2.34        4.0595    3   1   1         8
                23.68          3.39        3.7572    3   1   2         8
                24.19          5.42        3.6795    2   0   4         4
                24.38          7.33        3.6508    2   2   1         8
                24.99         13.39        3.5630    4   0   0         2
                25.57         33.70        3.4832    0   2   3         4
                27.09          2.49        3.2913    4   0   2         4
                28.52         44.89        3.1294    2   2   3         8
                31.23         10.62        2.8644    0   0   6         2
                32.65          1.48        2.7427    4   0   4         4
                32.80          2.77        2.7307    4   2   1         8
                33.11          1.45        2.7058    0   2   5         4
                33.46          2.13        2.6778    5   1   1         8
                33.72         11.81        2.6577    2   0   6         4
                34.70          2.31        2.5854    5   1   2         8
                35.49          1.15        2.5296    2   2   5         8
                36.06         12.56        2.4907    4   2   3         8
                37.88          2.79        2.3753    6   0   0         2
                39.35          1.73        2.2895    6   0   2         4
                40.40          6.62        2.2324    4   0   6         4
                41.15          5.07        2.1937    0   4   0         2
                41.93          1.02        2.1548    3   3   4         8
                42.18          3.08        2.1425    0   2   7         4
                42.53          2.05        2.1255    0   4   2         4
                43.15          6.33        2.0966    2   4   0         4
                43.65          1.31        2.0736    6   2   1         8
                44.14          4.32        2.0518    2   2   7         8
                44.48          2.85        2.0369    2   4   2         8
                46.07          1.94        1.9702    7   1   1         8
                46.26          6.79        1.9625    6   2   3         8
                46.48          1.51        1.9538    0   4   4         4
                47.02          2.45        1.9325    7   1   2         8
                48.30          2.20        1.8842    2   4   4         8
                48.75          3.77        1.8680    4   4   0         4
                49.65          2.01        1.8361    4   2   7         8
                49.87          2.96        1.8284    6   0   6         4
                50.70          1.36        1.8007    7   1   4         8
                52.11          1.19        1.7552    5   3   5         8
                52.24          3.73        1.7509    0   2   9         4
                52.55          4.62        1.7416    0   4   6         4
                53.33          1.27        1.7179    7   1   5         8
                53.92          6.61        1.7004    2   2   9         8
                54.22          6.42        1.6918    2   4   6         8
                54.96          1.10        1.6707    2   0  10         4
                55.23          1.08        1.6632    7   3   1         8
                56.07          1.04        1.6403    7   3   2         8
                57.16          2.18        1.6116    6   4   0         4
                58.16          2.14        1.5861    8   2   3         8
                58.76          4.07        1.5714    4   2   9         8
                59.04          3.92        1.5647    4   4   6         8
                59.57          1.27        1.5520    9   1   1         8
                60.37          1.31        1.5334    9   1   2         8
                61.27          1.24        1.5128    8   0   6         4
                61.72          1.05        1.5028    7   3   5         8
                63.50          1.10        1.4650    9   1   4         8
                65.80          1.03        1.4193    9   1   5         8
                65.92          1.71        1.4170    0   6   3         4
                66.32          2.65        1.4094    6   2   9         8
                66.58          2.13        1.4045    6   4   6         8
                66.60          1.21        1.4041    2   0  12         4
                67.38          2.78        1.3898    2   6   3         8
                67.76          1.07        1.3829    8   4   0         4
                70.92          1.05        1.3289    4   0  12         4
                71.67          1.75        1.3167    4   6   3         8
                76.25          1.08        1.2488    8   2   9         8
                78.62          1.32        1.2169    6   6   3         8
                81.37          1.60        1.1826    2   4  12         8
                84.56          1.72        1.1460    2   6   9         8
                85.42          1.21        1.1366    4   4  12         8
                88.59          1.16        1.1039    4   6   9         8
                89.46          1.32        1.0954    2   2  15         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.