MnSe
      Wyckoff R W G
      Crystal Structures 1 (1963) 85-237
      Second edition. Interscience Publishers, New York, New York
      rocksalt structure
      _database_code_amcsd 0011354

      CELL PARAMETERS:    5.4480   5.4480   5.4480   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    161.700
      Density (g/cm3):      5.499
      MAX. ABS. INTENSITY / VOLUME**2:      174.1029182    
      RIR:     10.308
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.37          5.83        3.1454    1   1   1         8
                32.88        100.00        2.7240    2   0   0         6
                47.19         67.06        1.9262    2   2   0        12
                55.98          2.97        1.6426    3   1   1        24
                58.71         21.63        1.5727    2   2   2         8
                68.95          9.37        1.3620    4   0   0         6
                76.17          1.38        1.2499    3   3   1        24
                78.52         24.54        1.2182    4   2   0        24
                87.77         17.93        1.1121    4   2   2        24
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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.