Periclase
      Zhang J
      Physics and Chemistry of Minerals 27 (2000) 145-148
      Effect of pressure on the thermal expansion of MgO up to 8.2 GPa
      Sample: Run3 at T = 373 K, P = 8.24 GPa
      _database_code_amcsd 0008391

      CELL PARAMETERS:    4.1476   4.1476   4.1476   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     71.349
      Density (g/cm3):      3.752
      MAX. ABS. INTENSITY / VOLUME**2:      34.95393716    
      RIR:      3.034
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                37.56         11.29        2.3946    1   1   1         8
                43.65        100.00        2.0738    2   0   0         6
                63.43         49.84        1.4664    2   2   0        12
                76.12          6.35        1.2505    3   1   1        24
                80.16         13.48        1.1973    2   2   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.