SiO2
      Boisen M B, Gibbs G V, Bukowinski M S T
      Physics and Chemistry of Minerals 21 (1994) 269-284
      Framework silica structures generated using simulated annealing
      with a potential energy function based on an H6Si2O7 molecule
      Sample: 14
      _database_code_amcsd 0007879

      CELL PARAMETERS:    5.8657   5.1519   5.3377   92.694   90.734   90.069
      SPACE GROUP: P1        
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    161.111
      Density (g/cm3):      2.477
      MAX. ABS. INTENSITY / VOLUME**2:      11.38840221    
      RIR:      1.497
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.11         63.11        5.8652    1   0   0         1
                16.63        100.00        5.3314    0   0   1         1
                17.23         51.58        5.1462    0   1   0         1
                22.39         20.23        3.9706   -1   0   1         1
                22.68         18.54        3.9201    1   0   1         1
                22.97         20.26        3.8717   -1   1   0         1
                23.01         17.75        3.8648    1   1   0         1
                23.46         17.33        3.7928    0  -1   1         1
                24.60         14.72        3.6186    0   1   1         1
                27.91         15.79        3.1963   -1  -1   1         1
                28.12         14.96        3.1736    1  -1   1         1
                28.86         24.59        3.0935   -1   1   1         1
                29.13         24.94        3.0660    1   1   1         1
                30.48         14.61        2.9326    2   0   0         1
                34.87          9.62        2.5731    0   2   0         1
                35.20          7.13        2.5499   -2   1   0         1
                35.25          6.89        2.5460    2   1   0         1
                36.86         15.08        2.4387   -1   0   2         1
                37.23         15.37        2.4151    1   0   2         1
                38.11         10.13        2.3612    0  -2   1         1
                38.17          2.06        2.3579   -1   2   0         1
                38.22          1.82        2.3548    1   2   0         1
                38.66          7.95        2.3288   -2  -1   1         1
                38.97          7.71        2.3113    2  -1   1         1
                41.15          2.47        2.1934   -1  -2   1         1
                41.27          1.69        2.1873    1  -2   1         1
                41.65          1.91        2.1686   -1   1   2         1
                42.01          2.55        2.1508    1   1   2         1
                42.51          3.44        2.1268   -1   2   1         1
                42.72          2.51        2.1166    1   2   1         1
                46.32          1.02        1.9600    2   0   2         1
                46.45          3.80        1.9551    3   0   0         1
                46.93          4.96        1.9359   -2   2   0         1
                47.02          5.21        1.9324    2   2   0         1
                47.97          1.51        1.8964    0  -2   2         1
                48.59          5.48        1.8736   -2  -1   2         1
                49.14          4.90        1.8539    2  -1   2         1
                49.78          3.12        1.8316   -2   1   2         1
                50.41          2.30        1.8103    2   1   2         1
                50.44          1.39        1.8093    0   2   2         1
                50.59          2.45        1.8041   -2   2   1         1
                50.97          1.72        1.7918    2   2   1         1
                53.01          1.80        1.7273   -3   1   1         1
                53.50          1.47        1.7129    3   1   1         1
                53.77          3.56        1.7047    0  -1   3         1
                55.49          3.32        1.6559    0   1   3         1
                55.50          3.24        1.6558    0  -3   1         1
                55.87          1.04        1.6456    1   3   0         1
                56.38          1.05        1.6318    1  -1   3         1
                57.18          3.28        1.6110    0   3   1         1
                58.15          2.83        1.5863   -3   0   2         1
                58.94          3.60        1.5669    3   0   2         1
                59.41          1.38        1.5557   -1   3   1         1
                59.60          1.72        1.5513    1   3   1         1
                60.63          1.71        1.5273   -3  -1   2         1
                61.34          1.64        1.5113    3  -1   2         1
                61.45          2.14        1.5089   -3  -2   1         1
                61.64          1.92        1.5047   -3   1   2         1
                61.72          2.23        1.5029    3  -2   1         1
                62.40          2.98        1.4882   -3   2   1         1
                62.46          1.74        1.4870    3   1   2         1
                62.89          3.07        1.4778    3   2   1         1
                63.05          3.07        1.4744    0  -3   2         1
                64.11          1.63        1.4526   -1  -2   3         1
                64.25          2.28        1.4498   -2   1   3         1
                64.45          1.58        1.4458    1  -2   3         1
                64.57          1.66        1.4432   -2  -3   1         1
                64.71          1.63        1.4405    2  -3   1         1
                65.03          2.26        1.4342    2   1   3         1
                65.19          2.70        1.4311    0   2   3         1
                68.15          1.10        1.3760   -1   3   2         1
                68.85          1.12        1.3637   -4   1   1         1
                69.40          1.18        1.3543    4   1   1         1
                70.68          4.44        1.3328    0   0   4         1
                71.45          1.71        1.3203   -2  -3   2         1
                71.82          1.76        1.3144    2  -3   2         1
                74.28          1.58        1.2768   -2   3   2         1
                74.85          1.68        1.2686    2   3   2         1
                75.50          1.99        1.2593   -4  -1   2         1
                75.65          1.45        1.2571   -1   4   0         1
                75.71          1.43        1.2562    1   4   0         1
                76.31          2.24        1.2479   -4  -2   1         1
                76.36          1.89        1.2472    4  -1   2         1
                76.39          2.17        1.2467   -4   1   2         1
                76.63          1.91        1.2434    4  -2   1         1
                77.04          1.11        1.2379   -1  -3   3         1
                77.07          1.08        1.2375    0   4   1         1
                77.13          1.02        1.2366   -4   2   1         1
                77.33          1.22        1.2339    1  -3   3         1
                77.38          2.15        1.2332    4   1   2         1
                79.40          1.16        1.2069    0  -2   4         1
                80.47          1.10        1.1935   -3  -2   3         1
                81.40          1.10        1.1823    3  -2   3         1
                81.54          3.01        1.1806    0  -4   2         1
                83.18          1.03        1.1614    0   2   4         1
                85.30          2.57        1.1379    0   4   2         1
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.