Quartz
      Kihara K
      European Journal of Mineralogy 2 (1990) 63-77
      An X-ray study of the temperature dependence of the quartz structure
      Sample: at T = 869 K
      _database_code_amcsd 0006373

      CELL PARAMETERS:    4.9971   4.9971   5.4574   90.000   90.000  120.000
      SPACE GROUP: P6_222    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    118.019
      Density (g/cm3):      2.536
      MAX. ABS. INTENSITY / VOLUME**2:      36.01964652    
      RIR:      4.625
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.52         18.14        4.3276    1   0   0         6
                26.28        100.00        3.3909    1   0   1        12
                35.94          3.72        2.4985    1   1   0         6
                39.02          2.01        2.3082    1   0   2        12
                41.74          3.47        2.1638    2   0   0         6
                45.07          2.62        2.0115    2   0   1        12
                49.46         14.67        1.8427    1   1   2        12
                54.09          1.03        1.6954    2   0   2        12
                58.95          5.87        1.5668    2   1   1        12
                66.67          3.09        1.4029    2   1   2        12
                67.24          5.62        1.3924    2   0   3        12
                74.39          1.57        1.2753    3   0   2        12
                78.67          1.61        1.2163    2   1   3        12
                80.15          1.71        1.1975    1   1   4        12
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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.