Zeravshanite
      Uvarova Y A, Sokolova E V, Hawthorne F C, Pautov L A, Agakhanov A A
      The Canadian Mineralogist 42 (2004) 125-134
      A novel (Si18O45)18- sheet in the crystal structure of zeravshanite,
      Cs4Na2Zr3(Si18O45)(H2O)2
      _database_code_amcsd 0005930

      CELL PARAMETERS:   26.3511   7.5464  22.9769   90.000  107.237   90.000
      SPACE GROUP: C2/c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   4363.882
      Density (g/cm3):      3.169
      MAX. ABS. INTENSITY / VOLUME**2:      16.87977945    
      RIR:      1.734
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.02         13.00       12.5838    2   0   0         2
                12.17         25.51        7.2714    2   0   2         2
                14.00         17.88        6.3269   -4   0   2         2
                14.08          7.10        6.2919    4   0   0         2
                14.09          5.60        6.2871   -1   1   2         4
                15.24          8.15        5.8133    1   1   2         4
                15.59          3.61        5.6838   -2   0   4         2
                15.80          2.76        5.6105    3   1   0         4
                16.16          4.77        5.4862    0   0   4         2
                16.26         12.24        5.4525   -3   1   2         4
                19.14          7.74        4.6367    3   1   2         4
                19.46          1.71        4.5610   -1   1   4         4
                20.27          3.42        4.3804   -3   1   4         4
                20.30          1.02        4.3742   -6   0   2         2
                20.76         27.42        4.2794   -5   1   2         4
                21.15          3.70        4.2013    1   1   4         4
                21.18          6.44        4.1946    6   0   0         2
                22.55          6.57        3.9434   -6   0   4         2
                23.58         17.30        3.7732    0   2   0         2
                24.34         64.25        3.6575    0   0   6         2
                24.48          6.25        3.6357    4   0   4         2
                24.55         17.36        3.6258    5   1   2         4
                24.63          2.38        3.6142    2   2   0         4
                24.85          1.52        3.5836    3   1   4         4
                26.32          1.97        3.3863   -3   1   6         4
                26.47         88.06        3.3671   -7   1   2         4
                26.56          1.51        3.3557   -2   2   3         4
                26.62         27.12        3.3491    2   2   2         4
                27.07          1.02        3.2937   -8   0   2         2
                27.34         15.92        3.2626    2   0   6         2
                27.48         18.85        3.2458    7   1   0         4
                27.52          4.20        3.2407   -4   2   2         4
                27.57          8.39        3.2359    4   2   0         4
                27.94          1.37        3.1928   -7   1   4         4
                28.39        100.00        3.1436   -2   2   4         4
                28.72          7.91        3.1089    0   2   4         4
                29.86          1.94        2.9919    5   1   4         4
                29.96          1.44        2.9829    4   2   2         4
                30.42          3.89        2.9385    6   0   4         2
                30.68          1.39        2.9144   -2   2   5         4
                30.75          1.31        2.9081    7   1   2         4
                30.76          2.00        2.9066    2   2   4         4
                31.25          1.05        2.8625   -2   0   8         2
                31.48          8.72        2.8419   -4   0   8         2
                31.58         22.45        2.8329   -7   1   6         4
                31.73          9.33        2.8198    4   0   6         2
                31.74          5.12        2.8190    3   1   6         4
                31.83          4.16        2.8114    8   0   2         2
                31.90          3.34        2.8052    6   2   0         4
                32.84          2.36        2.7274   -9   1   2         4
                33.34          1.59        2.6877   -2   2   6         4
                33.40          1.16        2.6831   -3   1   8         4
                33.53          2.71        2.6723   -9   1   4         4
                34.08          1.23        2.6307   -4   2   6         4
                34.14         31.64        2.6262    0   2   6         4
                34.20         15.02        2.6222    9   1   0         4
                34.38          9.38        2.6082   -5   1   8         4
                34.54          4.99        2.5971    6   2   2         4
                35.50          1.01        2.5288    2   0   8         2
                35.67          2.05        2.5168   10   0   0         2
                35.71         18.61        2.5143    7   1   4         4
                36.18          6.89        2.4826   -9   1   6         4
                36.20          1.68        2.4813   -8   2   2         4
                36.40          4.58        2.4679    2   2   6         4
                36.81          9.84        2.4418   -7   1   8         4
                37.07          1.02        2.4249    1   3   2         4
                37.09          1.55        2.4238    6   0   6         2
                37.32          1.75        2.4095    3   3   0         4
                38.95          1.53        2.3125    3   3   2         4
                39.52          3.93        2.2805   -2   2   8         4
                39.54          2.94        2.2792   -2   0  10         2
                39.55          1.41        2.2787   -3   3   4         4
                39.81          3.67        2.2641   -5   3   2         4
                40.35          4.21        2.2355   -6   0  10         2
                40.45          1.24        2.2301   -9   1   8         4
                41.28          8.84        2.1871  -12   0   4         2
                41.88          2.65        2.1569  -10   2   2         4
                42.05          9.87        2.1490    5   3   2         4
                43.06          2.20        2.1006    2   2   8         4
                43.13          1.72        2.0973   12   0   0         2
                43.21          1.99        2.0937   10   2   0         4
                43.27          1.74        2.0911   -7   3   2         4
                43.68          7.41        2.0724    5   1   8         4
                43.94          1.13        2.0607   -8   2   8         4
                45.55          1.33        1.9913    5   3   4         4
                45.96          4.23        1.9744   -9   1  10         4
                46.03          1.32        1.9717  -12   0   8         2
                46.43          3.24        1.9559   12   0   2         2
                46.55         11.72        1.9509   -2   2  10         4
                46.77          7.22        1.9423   -7   3   6         4
                46.89          1.48        1.9378    3   3   6         4
                47.77          1.32        1.9040    4   0  10         2
                47.96          7.38        1.8970    0   2  10         4
                47.98          4.83        1.8961    9   1   6         4
                48.09          4.30        1.8922  -12   2   4         4
                48.20          2.01        1.8881   -9   3   4         4
                48.24         11.82        1.8866    0   4   0         2
                48.38          2.05        1.8812  -14   0   4         2
                48.69          3.54        1.8702    9   3   0         4
                48.83          2.04        1.8651   -5   3   8         4
                48.85          5.68        1.8644  -14   0   2         2
                48.97          4.59        1.8601   11   1   4         4
                49.74          1.09        1.8331   12   2   0         4
                49.83          9.08        1.8298    7   3   4         4
                49.87          1.17        1.8287    0   0  12         2
                49.94          1.67        1.8261    2   4   2         4
                50.20         12.17        1.8175   -9   3   6         4
                50.29          3.74        1.8143   -7   1  12         4
                50.46          1.33        1.8087    2   2  10         4
                50.68          1.08        1.8013   -7   3   8         4
                51.01          4.75        1.7905   -2   4   4         4
                51.20          1.20        1.7841    0   4   4         4
                51.90          3.79        1.7619  -14   0   8         2
                52.45          1.18        1.7446   -9   1  12         4
                52.48          1.68        1.7438    6   0  10         2
                52.67          1.48        1.7379    2   0  12         2
                52.71          2.90        1.7365   12   2   2         4
                53.56          1.82        1.7111   -9   3   8         4
                54.08          1.33        1.6957   14   0   2         2
                54.52          1.24        1.6831  -11   3   6         4
                54.75          7.91        1.6767    0   4   6         4
                54.93          3.15        1.6715  -14   2   2         4
                55.60          1.02        1.6530  -11   1  12         4
                55.87          3.52        1.6456    0   2  12         4
                55.88          1.90        1.6453    3   1  12         4
                56.11          1.13        1.6392   -4   0  14         2
                56.20          5.09        1.6367    5   3   8         4
                56.33          1.30        1.6332    2   4   6         4
                56.41          1.74        1.6310  -16   0   6         2
                56.46          2.09        1.6298  -12   2  10         4
                56.56          2.84        1.6272    7   1  10         4
                56.70          1.06        1.6236   12   0   6         2
                56.83          1.56        1.6201   11   3   2         4
                57.01          2.31        1.6153   -2   0  14         2
                57.47          2.05        1.6035   -5   1  14         4
                57.75          6.23        1.5964  -14   2   8         4
                58.12          3.40        1.5871   -9   3  10         4
                58.47          3.87        1.5785    2   2  12         4
                58.69          1.97        1.5730   16   0   0         2
                58.74          1.08        1.5718   -4   4   8         4
                59.79          4.34        1.5467   14   2   2         4
                60.33          1.97        1.5342   13   3   0         4
                61.84          6.41        1.5003   -7   3  12         4
                61.99          3.01        1.4971  -16   2   6         4
                62.25          2.23        1.4914   12   2   6         4
                62.31          1.15        1.4902  -11   1  14         4
                63.30          1.58        1.4692   12   0   8         2
                63.74          1.82        1.4601   -9   3  12         4
                64.04          4.12        1.4540   14   2   4         4
                64.07          2.10        1.4533   -2   4  10         4
                65.21          1.81        1.4306    0   4  10         4
                65.32          1.94        1.4285  -12   4   4         4
                65.85          1.03        1.4183  -16   0  12         2
                65.95          2.74        1.4165  -14   2  12         4
                66.33          1.00        1.4092   -2   0  16         2
                66.78          6.50        1.4008   -7   5   2         4
                67.28          1.43        1.3916    7   5   0         4
                67.41          3.90        1.3892    7   3  10         4
                67.73          2.58        1.3834   -9   1  16         4
                68.40          2.78        1.3716    0   0  16         2
                68.95          2.85        1.3619    5   1  14         4
                69.19          1.23        1.3579   12   4   2         4
                69.45          1.67        1.3533   -7   5   6         4
                70.35          1.12        1.3382   18   0   2         2
                70.96          1.47        1.3282    9   5   0         4
                71.00          3.24        1.3276  -16   2  12         4
                71.07          1.10        1.3264   -5   5   8         4
                71.09          1.73        1.3261  -14   4   2         4
                71.64          2.87        1.3172  -14   2  14         4
                71.88          1.33        1.3135    7   5   4         4
                71.90          1.01        1.3131    0   4  12         4
                72.44          1.08        1.3047   19   1   0         4
                72.56          1.31        1.3028   -7   5   8         4
                73.46          1.06        1.2890    0   2  16         4
                73.55          2.28        1.2877  -14   4   8         4
                73.83          1.03        1.2835    7   1  14         4
                75.61          2.57        1.2577    0   6   0         2
                75.63          1.77        1.2574   -7   1  18         4
                75.65          2.93        1.2571   14   2   8         4
                77.02          1.02        1.2381   -3   3  16         4
                77.34          1.54        1.2339  -16   4   6         4
                77.34          1.23        1.2338  -21   1   4         4
                77.58          1.23        1.2306   12   4   6         4
                78.05          1.20        1.2243  -20   2   2         4
                79.01          1.12        1.2119   12   0  12         2
                80.81          1.54        1.1894    0   6   6         4
                81.05          1.18        1.1864   11   5   4         4
                85.69          1.18        1.1337  -16   4  12         4
                85.96          1.49        1.1308  -14   2  18         4
                86.37          1.04        1.1265    2   2  18         4
                88.04          1.71        1.1094    0   4  16         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.