Achavalite
      Franz E D
      Neues Jahrbuch fur Mineralogie, Monatshefte 1972 (1972) 276-280
      Rontgenographische Daten der Mischphasen im System Pyrit (FeS2) -
      Ferroselit (FeSe2)/Pyrrhotin (FeS) - Achavalit (FeSe)
      Locality: synthetic
      _database_code_amcsd 0019172

      CELL PARAMETERS:    3.5210   3.5210   5.9010   90.000   90.000  120.000
      SPACE GROUP: P6_3mc    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     63.356
      Density (g/cm3):      5.836
      MAX. ABS. INTENSITY / VOLUME**2:      106.7381519    
      RIR:      5.955
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                29.29         19.09        3.0493    1   0   0         6
                33.07         67.22        2.7090    1   0   1         6
                42.64        100.00        2.1204    1   0   2         6
                51.94         45.76        1.7605    1   1   0         6
                55.60         13.13        1.6529    1   0   3         6
                60.75          1.79        1.5246    2   0   0         6
                62.97          8.67        1.4762    2   0   1         6
                63.01          7.83        1.4753    0   0   4         1
                69.38         18.93        1.3545    2   0   2         6
                70.97          1.93        1.3280    1   0   4         6
                79.55          4.13        1.2050    2   0   3         6
                85.93          2.23        1.1311    2   1   1        12
                85.97         17.13        1.1307    1   1   4         6
                88.92          3.08        1.1006    1   0   5         6
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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.