Quartz
      Brill R, Hermann C, Peters C
      Naturwissenschaften 27 (1939) 676-677
      Studien ueber chemische Bindung mittels Fourieranalyse III. Die Bindung
      im Quarz
      _cod_database_code 1011172
      _database_code_amcsd 0018049

      CELL PARAMETERS:    4.9130   4.9130   5.4050   90.000   90.000  120.000
      SPACE GROUP: P3_121    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    112.985
      Density (g/cm3):      2.649
      MAX. ABS. INTENSITY / VOLUME**2:      35.14210617    
      RIR:      4.320
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.88         20.31        4.2548    1   0   0         6
                26.66         29.39        3.3432    0   1   1         6
                26.66         70.61        3.3432    1   0   1         6
                36.58          7.23        2.4565    1   1   0         3
                39.50          6.26        2.2812    0   1   2         6
                39.50          1.17        2.2812    1   0   2         6
                40.33          3.53        2.2364    1   1   1         6
                42.49          5.52        2.1274    2   0   0         6
                45.84          1.93        1.9796    0   2   1         6
                45.84          1.01        1.9796    2   0   1         6
                50.19         12.10        1.8178    1   1   2         6
                54.93          3.62        1.6716    2   0   2         6
                55.38          1.54        1.6591    1   0   3         6
                60.02          4.33        1.5414    1   2   1         6
                60.02          4.65        1.5414    2   1   1         6
                64.10          2.12        1.4528    1   1   3         6
                67.81          1.06        1.3820    1   2   2         6
                67.81          4.68        1.3820    2   1   2         6
                68.21          5.13        1.3749    0   2   3         6
                68.21          1.39        1.3749    2   0   3         6
                68.38          4.65        1.3718    3   0   1         6
                73.54          1.67        1.2879    0   1   4         6
                75.74          2.02        1.2558    0   3   2         6
                79.97          2.57        1.1997    1   2   3         6
                81.26          2.50        1.1840    1   1   4         6
                81.58          1.05        1.1801    3   1   0         6
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.