Quartz
      Hazen R M, Finger L W, Hemley R J, Mao H K
      Solid State Communications 72 (1989) 507-511
      High-pressure crystal chemistry and amorphization of alpha-quartz
      Locality: synthetic
      Sample: P = 8.0 GPa
      _database_code_amcsd 0015465

      CELL PARAMETERS:    4.6250   4.6250   5.2160   90.000   90.000  120.000
      SPACE GROUP: P3_121    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     96.625
      Density (g/cm3):      3.097
      MAX. ABS. INTENSITY / VOLUME**2:      31.35328927    
      RIR:      3.296
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.19         21.48        4.0054    1   0   0         6
                28.09         81.76        3.1768    1   0   1         6
                28.09         18.24        3.1768    0   1   1         6
                38.95         16.37        2.3125    1   1   0         3
                41.31          5.60        2.1855    1   0   2         6
                41.31         11.80        2.1855    0   1   2         6
                42.77          6.30        2.1140    1   1   1         6
                45.28         10.36        2.0027    2   0   0         6
                48.70          1.00        1.8696    2   0   1         6
                52.64          2.10        1.7387    0   0   3         2
                52.92          7.20        1.7303    1   1   2         6
                57.81          2.11        1.5949    1   0   3         6
                58.07          3.35        1.5884    2   0   2         6
                58.07          5.46        1.5884    0   2   2         6
                64.04          6.43        1.4539    1   2   1         6
                64.04          5.13        1.4539    2   1   1         6
                67.39          3.00        1.3897    1   1   3         6
                71.91          4.94        1.3129    0   2   3         6
                72.14          8.71        1.3093    2   1   2         6
                73.17          7.86        1.2934    3   0   1         6
                76.89          1.80        1.2399    1   0   4         6
                76.89          3.77        1.2399    0   1   4         6
                80.88          3.62        1.1884    0   3   2         6
                84.94          3.63        1.1417    1   2   3         6
                85.49          1.87        1.1359    1   1   4         6
                87.89          1.35        1.1109    3   1   0         6
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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.