Magnesite
      Markgraf S A, Reeder R J
      American Mineralogist 70 (1985) 590-600
      High-temperature structure refinements of calcite and magnesite
      Sample: T = 400 C
      _database_code_amcsd 0000993

      CELL PARAMETERS:    4.6460   4.6460  15.1390   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    283.000
      Density (g/cm3):      2.968
      MAX. ABS. INTENSITY / VOLUME**2:      16.25261710    
      RIR:      1.783
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                32.48        100.00        2.7568    1   0   4         6
                35.58         13.18        2.5232    0   0   6         2
                38.76          6.11        2.3230    1   1   0         6
                42.86         48.34        2.1102    1   1   3        12
                46.72         12.70        1.9443    2   0   2         6
                51.44          5.02        1.7764    0   2   4         6
                53.51         17.60        1.7124    0   1   8         6
                53.63         22.08        1.7090    1   1   6        12
                61.26          4.66        1.5131    2   1   1        12
                62.27          6.94        1.4910    1   2   2        12
                66.23          5.67        1.4111    2   1   4        12
                68.01          1.97        1.3784    2   0   8         6
                68.92          6.15        1.3624    1   1   9        12
                69.12          2.69        1.3590    1   2   5        12
                70.17         11.68        1.3412    3   0   0         6
                75.33          4.35        1.2616    0   0  12         2
                76.59          1.71        1.2440    2   1   7        12
                79.18          1.72        1.2097    0   2  10         6
                81.13          2.82        1.1854    1   2   8        12
                88.11          1.13        1.1086    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.