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 = 9.5 GPa
      _database_code_amcsd 0015466

      CELL PARAMETERS:    4.5940   4.5940   5.2000   90.000   90.000  120.000
      SPACE GROUP: P3_121    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     95.042
      Density (g/cm3):      3.149
      MAX. ABS. INTENSITY / VOLUME**2:      32.20986290    
      RIR:      3.331
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.35         17.09        3.9785    1   0   0         6
                28.24         18.25        3.1598    0   1   1         6
                28.24         81.75        3.1598    1   0   1         6
                39.22         17.08        2.2970    1   1   0         3
                41.49          5.63        2.1765    1   0   2         6
                41.49         12.92        2.1765    0   1   2         6
                43.05          5.29        2.1011    1   1   1         6
                45.60          8.61        1.9893    2   0   0         6
                49.03          1.01        1.8579    2   0   1         6
                52.82          2.09        1.7333    0   0   3         2
                53.21          8.13        1.7214    1   1   2         6
                58.04          2.04        1.5891    1   0   3         6
                58.41          5.57        1.5799    0   2   2         6
                58.41          2.71        1.5799    2   0   2         6
                64.51          6.31        1.4446    1   2   1         6
                64.51          5.32        1.4446    2   1   1         6
                67.72          2.93        1.3836    1   1   3         6
                72.30          5.25        1.3068    0   2   3         6
                72.63          8.49        1.3017    2   1   2         6
                73.73          7.13        1.2850    3   0   1         6
                77.20          3.78        1.2357    0   1   4         6
                77.20          1.65        1.2357    1   0   4         6
                81.47          3.31        1.1814    0   3   2         6
                85.49          3.26        1.1359    1   2   3         6
                85.91          1.67        1.1314    1   1   4         6
                88.64          1.38        1.1034    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.