Magnesite
      Bromiley F A, Boffa Ballaran T, Langenhorst F, Seifert F
      American Mineralogist 92 (2007) 829-836
      Order and miscibility in the otavite - magnesite solid solution
      Locality: synthetic
      Sample: X_Mg = .5, synthesized at 500 C, 1 GPa, 96 h
      _database_code_amcsd 0004321

      CELL PARAMETERS:    4.7821   4.7821  15.6970   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    310.874
      Density (g/cm3):      4.113
      MAX. ABS. INTENSITY / VOLUME**2:      55.19992675    
      RIR:      4.369
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.95          6.72        5.2323    0   0   3         2
                22.20          4.95        4.0044    1   0   1         6
                24.30         43.29        3.6628    0   1   2         6
                31.40        100.00        2.8485    1   0   4         6
                35.89          2.86        2.5018    0   1   5         6
                37.62         24.80        2.3911    1   1   0         6
                41.52          1.72        2.1747    2  -1   3         6
                41.52         10.83        2.1747    1   1   3         6
                44.11          2.89        2.0529    0   2   1         6
                45.29         21.22        2.0022    2   0   2         6
                46.03          1.28        1.9719    1   0   7         6
                49.79         11.20        1.8314    0   2   4         6
                51.54         18.85        1.7732    0   1   8         6
                51.80         12.36        1.7650    2  -1   6         6
                51.80         15.60        1.7650    1   1   6         6
                59.33          1.81        1.5576    3  -1   1         6
                60.29          7.47        1.5351   -1   3   2         6
                60.29          6.02        1.5351    1   2   2         6
                63.37          3.06        1.4678    1   0  10         6
                64.04          5.85        1.4539    3  -1   4         6
                64.04          3.86        1.4539    2   1   4         6
                65.54          3.84        1.4243    2   0   8         6
                66.34          2.11        1.4091    2  -1   9         6
                66.78          1.72        1.4008   -1   3   5         6
                67.90          7.59        1.3805    3   0   0         6
                72.22          2.75        1.3081    0   0  12         2
                76.09          2.86        1.2509    0   2  10         6
                78.10          2.40        1.2236    1   2   8         6
                78.10          2.35        1.2236   -1   3   8         6
                78.31          1.03        1.2209    0   3   6         6
                78.31          1.08        1.2209    3   0   6         6
                84.41          1.24        1.1476    1   1  12         6
                84.41          1.93        1.1476    2  -1  12         6
                88.14          2.15        1.1084    2   1  10         6
                88.14          1.32        1.1084    3  -1  10         6
                88.75          1.08        1.1024    1   3   4         6
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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.