SnMg2
      Wyckoff R W G
      Crystal Structures 1 (1963) 239-444
      Second edition. Interscience Publishers, New York, New York
      Fluorite structure
      _database_code_amcsd 0011719

      CELL PARAMETERS:    6.7650   6.7650   6.7650   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    309.602
      Density (g/cm3):      3.589
      MAX. ABS. INTENSITY / VOLUME**2:      124.8623975    
      RIR:     11.328
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.77        100.00        3.9058    1   1   1         8
                26.35         16.16        3.3825    2   0   0         6
                37.61         79.45        2.3918    2   2   0        12
                44.41         46.26        2.0397    3   1   1        24
                46.50          4.22        1.9529    2   2   2         8
                54.24         12.36        1.6912    4   0   0         6
                59.57         17.33        1.5520    3   3   1        24
                61.28          5.02        1.5127    4   2   0        24
                67.87         22.48        1.3809    4   2   2        24
                72.62          2.90        1.3019    3   3   3         8
                72.62          8.69        1.3019    5   1   1        24
                80.28          6.34        1.1959    4   4   0        12
                84.78         10.64        1.1435    5   3   1        48
                86.27          1.72        1.1275    4   4   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.