Hardystonite
      Warren B, Trautz O
      Zeitschrift fur Kristallographie 75 (1930) 525-528
      The Structure of Hardystonite Ca2 Zn Si2 O7
      _cod_database_code 1011252
      _database_code_amcsd 0018114

      CELL PARAMETERS:    7.8460   7.8460   5.0000   90.000   90.000   90.000
      SPACE GROUP: P-42_1m   
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    307.799
      Density (g/cm3):      3.385
      MAX. ABS. INTENSITY / VOLUME**2:      23.08223309    
      RIR:      2.221
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.97          4.26        5.5480    1   1   0         4
                17.74         24.75        5.0000    0   0   1         2
                21.07          4.03        4.2166    1   0   1         8
                22.67          2.31        3.9230    2   0   0         4
                23.96         49.86        3.7142    1   1   1         4
                25.38          3.88        3.5088    2   1   0         8
                28.93         66.20        3.0864    2   0   1         8
                31.14        100.00        2.8722    2   1   1         8
                32.27         16.88        2.7740    2   2   0         4
                35.92          8.43        2.5000    0   0   2         2
                36.20         39.84        2.4811    3   1   0         8
                37.06         12.63        2.4257    2   2   1         4
                37.77          6.29        2.3820    1   0   2         8
                38.86          9.17        2.3175    3   0   1         8
                39.54          6.18        2.2793    1   1   2         4
                40.59         10.11        2.2225    3   1   1         8
                44.50          9.77        2.0361    2   1   2         8
                45.46          1.74        1.9953    3   2   1         8
                46.29          1.45        1.9615    4   0   0         4
                47.80          7.00        1.9029    4   1   0         8
                49.05         10.84        1.8571    2   2   2         4
                49.27          4.53        1.8493    3   3   0         4
                49.95          3.13        1.8260    4   0   1         8
                51.38          8.45        1.7785    4   1   1         8
                51.92         41.19        1.7611    3   1   2         8
                52.13         13.86        1.7544    4   2   0         8
                52.78          9.19        1.7345    3   3   1         4
                55.51          7.30        1.6555    4   2   1         8
                56.03          2.79        1.6414    3   2   2         8
                57.76          4.16        1.5962    1   1   3         4
                60.13          2.25        1.5387    5   1   0         8
                60.34          4.91        1.5340    2   0   3         8
                61.21          1.08        1.5142    4   1   2         8
                61.60          5.78        1.5055    2   1   3         8
                63.23          9.82        1.4707    5   1   1         8
                63.89          1.25        1.4570    5   2   0         8
                64.93          5.46        1.4361    4   2   2         8
                65.32          5.03        1.4286    2   2   3         4
                66.53          1.72        1.4055    3   0   3         8
                66.89          9.52        1.3988    5   2   1         8
                67.53          5.64        1.3870    4   4   0         4
                67.73          6.03        1.3835    3   1   3         8
                69.91          3.27        1.3456    5   3   0         8
                70.45          4.64        1.3365    4   4   1         4
                70.91          1.13        1.3291    4   3   2         8
                72.07          2.20        1.3104    5   1   2         8
                72.25          5.75        1.3077    6   0   0         4
                73.41          1.20        1.2899    6   1   0         8
                74.74          1.16        1.2701    4   0   3         8
                75.89          5.50        1.2538    4   1   3         8
                76.16          2.13        1.2500    0   0   4         2
                77.02          3.74        1.2381    3   3   3         4
                78.93          2.17        1.2128    4   4   2         4
                79.29          1.62        1.2083    4   2   3         8
                79.62          5.85        1.2041    6   2   1         8
                80.75          2.32        1.1901    5   4   1         8
                81.18          4.34        1.1849    5   3   2         8
                83.41          4.12        1.1587    6   0   2         8
                84.87          1.09        1.1425    4   3   3         8
                85.14          2.28        1.1396    2   2   4         4
                85.98          4.90        1.1306    5   1   3         8
                86.24          1.63        1.1278    3   0   4         8
                87.35          5.05        1.1163    3   1   4         8
                89.30          1.35        1.0969    5   2   3         8
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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.