Magnesite
      Effenberger H, Mereiter K, Zemann J
      Zeitschrift fur Kristallographie 156 (1981) 233-243
      Crystal structure refinements of magnesite, calcite, rhodochrosite, siderite,
      smithsonite, and dolomite, with discussion of some aspects of the
      stereochemistry of calcite type carbonates
      Locality: Oberdorf, Styria, Austria
      _database_code_amcsd 0020836

      CELL PARAMETERS:    4.6328   4.6328  15.0129   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    279.050
      Density (g/cm3):      3.021
      MAX. ABS. INTENSITY / VOLUME**2:      17.09444485    
      RIR:      1.842
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                32.67        100.00        2.7409    1   0   4         6
                35.89         12.78        2.5022    0   0   6         2
                38.88          6.31        2.3164    1   1   0         6
                43.03         49.97        2.1021    1   1   3        12
                46.88         13.44        1.9380    2   0   2         6
                51.67          5.38        1.7692    0   2   4         6
                53.94         18.37        1.6999    0   1   8         6
                53.94         23.83        1.6998    1   1   6        12
                61.46          4.99        1.5088    2   1   1        12
                62.48          7.70        1.4864    1   2   2        12
                66.50          6.34        1.4060    2   1   4        12
                68.46          2.18        1.3704    2   0   8         6
                69.43          6.85        1.3536    1   1   9        12
                69.44          2.96        1.3536    1   2   5        12
                70.40         13.31        1.3374    3   0   0         6
                76.08          4.89        1.2511    0   0  12         2
                77.01          1.93        1.2382    2   1   7        12
                79.79          2.02        1.2020    0   2  10         6
                81.63          3.30        1.1795    1   2   8        12
                88.91          1.32        1.1008    1   1  12        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.