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 = 12.5 GPa
      _database_code_amcsd 0015467

      CELL PARAMETERS:    4.5350   4.5350   5.1700   90.000   90.000  120.000
      SPACE GROUP: P3_121    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     92.082
      Density (g/cm3):      3.250
      MAX. ABS. INTENSITY / VOLUME**2:      30.38722163    
      RIR:      3.044
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.64         13.30        3.9274    1   0   0         6
                28.54         18.60        3.1274    0   1   1         6
                28.54         81.40        3.1274    1   0   1         6
                39.75         22.27        2.2675    1   1   0         3
                41.84         15.47        2.1593    0   1   2         6
                41.84          7.03        2.1593    1   0   2         6
                43.59          5.22        2.0766    1   1   1         6
                46.23          8.97        1.9637    2   0   0         6
                53.15          2.54        1.7233    0   0   3         2
                53.78          8.82        1.7046    1   1   2         6
                58.49          1.85        1.5781    1   0   3         6
                59.08          7.53        1.5637    0   2   2         6
                59.08          1.96        1.5637    2   0   2         6
                62.58          1.50        1.4844    2   1   0         6
                65.41          7.04        1.4268    1   2   1         6
                65.41          5.14        1.4268    2   1   1         6
                68.37          3.15        1.3720    1   1   3         6
                73.05          5.41        1.2953    0   2   3         6
                73.05          1.10        1.2953    2   0   3         6
                73.58         10.66        1.2873    2   1   2         6
                74.81          6.79        1.2691    3   0   1         6
                77.79          4.37        1.2277    0   1   4         6
                77.79          1.84        1.2277    1   0   4         6
                82.61          3.07        1.1679    0   3   2         6
                86.54          2.87        1.1247    1   2   3         6
                86.72          1.60        1.1229    1   1   4         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.