As2 Mg3
      Natta G, Passerini L
      Gazzetta Chimica Italiana 58 (1928) 541-550
      Sugli arseniuri di magnesio e di zinco
      _cod_database_code 1010124
      _database_code_amcsd 0017054

      CELL PARAMETERS:    6.1000   6.1000   6.1000   90.000   90.000   90.000
      SPACE GROUP: P4_232    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    226.981
      Density (g/cm3):      3.259
      MAX. ABS. INTENSITY / VOLUME**2:      77.40571909    
      RIR:      7.734
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.59          7.23        4.3134    1   1   0        12
                25.29        100.00        3.5218    1   1   1         8
                29.28         12.80        3.0500    2   0   0         6
                36.07          3.11        2.4903    2   1   1        24
                41.89         82.07        2.1567    2   2   0        12
                47.11          1.37        1.9290    3   1   0        24
                49.56         43.89        1.8392    3   1   1        24
                51.93          3.33        1.7609    2   2   2         8
                56.44          1.49        1.6303    3   2   1        24
                60.73         12.40        1.5250    4   0   0         6
                66.85         16.57        1.3994    3   3   1        24
                68.83          4.29        1.3640    4   2   0        24
                76.51         22.80        1.2452    4   2   2        24
                82.10          8.74        1.1739    5   1   1        24
                82.10          2.91        1.1739    3   3   3         8
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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.