Stishovite
      Ross N L, Shu J F, Hazen R M, Gasparik T
      American Mineralogist 75 (1990) 739-747
      High-pressure crystal chemistry of stishovite
      P = 0, but in the diamond cell
      _database_code_amcsd 0001306

      CELL PARAMETERS:    4.1801   4.1801   2.6678   90.000   90.000   90.000
      SPACE GROUP: P4_2/mnm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     46.615
      Density (g/cm3):      4.280
      MAX. ABS. INTENSITY / VOLUME**2:      27.03176051    
      RIR:      2.056
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                30.24        100.00        2.9558    1   1   0         4
                40.10         24.60        2.2488    1   0   1         8
                45.82         39.14        1.9804    1   1   1         8
                48.71         14.97        1.8694    2   1   0         8
                60.47         58.52        1.5309    2   1   1        16
                62.88         19.34        1.4779    2   2   0         4
                70.61         10.09        1.3339    0   0   2         2
                71.35          6.30        1.3219    3   1   0         8
                73.21          1.34        1.2928    2   2   1         8
                77.25         26.68        1.2351    3   0   1         8
                78.70         10.47        1.2158    1   1   2         8
                81.21          2.02        1.1844    3   1   1        16
                86.57          1.23        1.1244    2   0   2         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.