Magnesite
      Ross N L
      American Mineralogist 82 (1997) 682-688
      The equation of state and high-pressure behaviour of magnesite
      Sample: at P = 4.77 GPa
      _database_code_amcsd 0001909

      CELL PARAMETERS:    4.5937   4.5937  14.7157   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    268.928
      Density (g/cm3):      3.123
      MAX. ABS. INTENSITY / VOLUME**2:      17.02406300    
      RIR:      1.775
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                33.17        100.00        2.7010    1   0   4         6
                36.64         13.11        2.4526    0   0   6         2
                39.22          6.13        2.2968    1   1   0         6
                43.51         53.39        2.0801    1   1   3        12
                47.34         13.55        1.9202    2   0   2         6
                52.28          5.64        1.7497    0   2   4         6
                54.75         24.57        1.6765    1   1   6        12
                55.00         18.07        1.6696    0   1   8         6
                62.04          4.90        1.4959    2   1   1        12
                63.11          7.61        1.4732    1   2   2        12
                67.27          6.76        1.3919    2   1   4        12
                69.62          2.26        1.3505    2   0   8         6
                70.30          2.88        1.3390    1   2   5        12
                70.73          7.16        1.3320    1   1   9        12
                71.09         14.48        1.3261    3   0   0         6
                77.90          4.93        1.2263    0   0  12         2
                78.15          1.88        1.2230    2   1   7        12
                81.33          1.99        1.1830    0   2  10         6
                82.94          3.50        1.1642    1   2   8        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.