Cristobalite
      Dera P, Lazarz J D, Prakapenka V B, Barkley M, Downs R T
      Physics and Chemistry of Minerals 38 (2011) 517-529
      New insights into the high-pressure polymorphism of SiO2 cristobalite
      Note: P = 9.1 GPa
      Locality: Ellora Caves, India
      _database_code_amcsd 0018347

      CELL PARAMETERS:    4.5990   4.5990   6.1300   90.000   90.000   90.000
      SPACE GROUP: P4_12_12  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    129.654
      Density (g/cm3):      3.078
      MAX. ABS. INTENSITY / VOLUME**2:      24.82995405    
      RIR:      2.627
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.19        100.00        3.6788    1   0   1         8
                27.43          7.40        3.2520    1   1   0         4
                31.13         21.67        2.8728    1   1   1         8
                35.19         37.09        2.5505    1   0   2         8
                39.18         32.97        2.2995    2   0   0         4
                40.44          1.52        2.2305    1   1   2         8
                41.96          4.07        2.1530    2   0   1         8
                46.58          9.17        1.9499    2   1   1         8
                52.92          7.45        1.7301    1   1   3         8
                53.67          5.95        1.7079    2   1   2         8
                56.60          3.39        1.6260    2   2   0         4
                60.40          5.88        1.5325    0   0   4         2
                60.63          4.66        1.5274    2   0   3         8
                64.02          3.48        1.4543    3   1   0         8
                64.26          1.33        1.4496    2   1   3         8
                64.92          2.46        1.4364    2   2   2         8
                66.02          5.72        1.4151    3   1   1         8
                68.43         14.35        1.3711    3   0   2         8
                71.85          2.62        1.3139    3   1   2         8
                74.39          3.38        1.2752    2   0   4         8
                76.24          3.54        1.2488    3   2   1         8
                77.71          1.65        1.2289    2   1   4         8
                81.18          6.07        1.1849    3   1   3         8
                81.20          3.90        1.1846    1   0   5         8
                81.78          5.11        1.1776    3   2   2         8
                89.25          2.35        1.0974    4   1   1         8
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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.