Stishovite
      Yamanaka T, Fukuda T, Tsuchiya J
      Physics and Chemistry of Minerals 29 (2002) 633-641
      Bonding character of SiO2 stishovite under high pressures up to 30 GPa
      Sample: P = 12.3 GPa
      _database_code_amcsd 0008738

      CELL PARAMETERS:    4.1180   4.1180   2.6490   90.000   90.000   90.000
      SPACE GROUP: P4_2/mnm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     44.922
      Density (g/cm3):      4.441
      MAX. ABS. INTENSITY / VOLUME**2:      27.09511182    
      RIR:      1.986
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                30.70        100.00        2.9119    1   1   0         4
                40.49         25.15        2.2279    1   0   1         8
                46.34         39.49        1.9595    1   1   1         8
                49.49         14.30        1.8416    2   1   0         8
                61.31         55.93        1.5121    2   1   1        16
                63.94         18.52        1.4559    2   2   0         4
                71.19          9.72        1.3245    0   0   2         2
                72.60          5.87        1.3022    3   1   0         8
                74.34          1.21        1.2759    2   2   1         8
                78.48         24.55        1.2188    3   0   1         8
                79.50          9.71        1.2056    1   1   2         8
                82.55          2.02        1.1687    3   1   1        16
                87.59          1.03        1.1139    2   0   2         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.