Magnesite
      Markgraf S A, Reeder R J
      American Mineralogist 70 (1985) 590-600
      High-temperature structure refinements of calcite and magnesite
      Sample: T = 300 C
      _database_code_amcsd 0000992

      CELL PARAMETERS:    4.6420   4.6420  15.0960   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    281.710
      Density (g/cm3):      2.981
      MAX. ABS. INTENSITY / VOLUME**2:      16.41652384    
      RIR:      1.793
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                32.54        100.00        2.7515    1   0   4         6
                35.69         13.21        2.5160    0   0   6         2
                38.80          6.10        2.3210    1   1   0         6
                42.91         49.39        2.1076    1   1   3        12
                46.77         12.95        1.9424    2   0   2         6
                51.51          5.14        1.7741    0   2   4         6
                53.66         17.87        1.7082    0   1   8         6
                53.73         22.79        1.7060    1   1   6        12
                61.32          4.78        1.5118    2   1   1        12
                62.34          7.19        1.4896    1   2   2        12
                66.32          5.91        1.4095    2   1   4        12
                68.16          2.04        1.3758    2   0   8         6
                69.09          6.45        1.3595    1   1   9        12
                69.22          2.78        1.3573    1   2   5        12
                70.24         12.32        1.3400    3   0   0         6
                75.59          4.55        1.2580    0   0  12         2
                76.73          1.79        1.2421    2   1   7        12
                79.38          1.83        1.2071    0   2  10         6
                81.30          2.99        1.1835    1   2   8        12
                88.38          1.18        1.1060    1   1  12        12
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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.