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 = 3.6 GPa
      Locality: Ellora Caves, India
      _database_code_amcsd 0018344

      CELL PARAMETERS:    4.7460   4.7460   6.4450   90.000   90.000   90.000
      SPACE GROUP: P4_12_12  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    145.171
      Density (g/cm3):      2.749
      MAX. ABS. INTENSITY / VOLUME**2:      30.84512948    
      RIR:      3.654
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.28        100.00        3.8216    1   0   1         8
                26.56          2.78        3.3559    1   1   0         4
                30.02         16.29        2.9766    1   1   1         8
                33.62         22.32        2.6660    1   0   2         8
                37.92         25.08        2.3730    2   0   0         4
                44.97          6.44        2.0160    2   1   1         8
                50.44          7.12        1.8093    1   1   3         8
                51.56          6.29        1.7725    2   1   2         8
                54.70          2.10        1.6780    2   2   0         4
                57.17          2.88        1.6113    0   0   4         2
                57.90          3.66        1.5926    2   0   3         8
                60.23          2.01        1.5364    3   0   1         8
                61.82          1.72        1.5008    3   1   0         8
                62.40          1.27        1.4883    2   2   2         8
                63.66          5.36        1.4617    3   1   1         8
                65.76          9.17        1.4201    3   0   2         8
                70.67          2.04        1.3330    2   0   4         8
                71.32          1.28        1.3224    2   2   3         8
                73.42          2.39        1.2897    3   2   1         8
                73.84          2.23        1.2833    2   1   4         8
                76.59          3.65        1.2439    1   0   5         8
                77.60          5.88        1.2303    3   1   3         8
                78.49          4.65        1.2186    3   2   2         8
                85.74          1.78        1.1331    4   1   1         8
                87.13          1.30        1.1186    3   3   0         4
                88.81          2.08        1.1017    2   1   5         8
                89.17          1.26        1.0982    3   1   4         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.