Otavite
      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 = .1, synthesized at 800 C, 1 GPa, 1 h
      _database_code_amcsd 0004340

      CELL PARAMETERS:    4.8934   4.8934  16.1892   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    335.720
      Density (g/cm3):      4.855
      MAX. ABS. INTENSITY / VOLUME**2:      95.56055240    
      RIR:      6.409
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.70         70.08        3.7544    0   1   2         6
                30.54        100.00        2.9269    1   0   4         6
                33.20          2.95        2.6982    0   0   6         2
                36.73         31.23        2.4467    1   1   0         6
                40.48          5.48        2.2284    1   1   3        12
                44.18         22.17        2.0498    2   0   2         6
                48.49         12.66        1.8772    0   2   4         6
                49.94         18.44        1.8261    0   1   8         6
                50.34         28.51        1.8125    1   1   6        12
                58.76         14.57        1.5713    1   2   2        12
                61.30          3.80        1.5123    1   0  10         6
                62.35          9.90        1.4893    2   1   4        12
                63.58          4.44        1.4635    2   0   8         6
                66.15          6.42        1.4126    3   0   0         6
                69.70          2.29        1.3491    0   0  12         2
                73.64          2.94        1.2864    0   2  10         6
                75.73          4.50        1.2559    1   2   8        12
                76.05          1.41        1.2515    3   0   6         6
                76.05          1.41        1.2515    0   3   6         6
                81.47          3.20        1.1814    1   1  12        12
                85.23          3.22        1.1386    2   1  10        12
                86.16          1.37        1.1287    1   3   4        12
                87.56          1.00        1.1142    2   2   6        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.