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 = .2, synthesized at 600 C, 1 GPa, 3 h
      _database_code_amcsd 0004326

      CELL PARAMETERS:    4.8670   4.8670  16.0787   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    329.841
      Density (g/cm3):      4.675
      MAX. ABS. INTENSITY / VOLUME**2:      85.12793679    
      RIR:      5.929
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.84         64.77        3.7330    0   1   2         6
                30.74        100.00        2.9089    1   0   4         6
                33.44          2.07        2.6798    0   0   6         2
                36.94         29.66        2.4335    1   1   0         6
                40.72          6.93        2.2158    1   1   3        12
                44.44         21.84        2.0386    2   0   2         6
                48.79         12.48        1.8665    0   2   4         6
                50.29         18.79        1.8141    0   1   8         6
                50.67         28.78        1.8015    1   1   6        12
                58.19          1.00        1.5853    2   1   1        12
                59.12         14.34        1.5627    1   2   2        12
                61.75          3.57        1.5023    1   0  10         6
                62.74         10.11        1.4810    2   1   4        12
                64.02          4.45        1.4545    2   0   8         6
                66.56          7.13        1.4050    3   0   0         6
                70.25          2.54        1.3399    0   0  12         2
                74.18          2.98        1.2783    0   2  10         6
                76.27          4.69        1.2485    1   2   8        12
                76.57          1.22        1.2443    0   3   6         6
                76.57          1.22        1.2443    3   0   6         6
                82.11          3.24        1.1737    1   1  12        12
                85.88          3.27        1.1317    2   1  10        12
                86.75          1.54        1.1225    1   3   4        12
                88.19          1.05        1.1079    2   2   6        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.