Schapbachite
      Geller S, Wernick J H
      Acta Crystallographica 12 (1959) 46-54
      Ternary semiconducting compounds with sodium chloride-like structure: AgSbSe2,
      AgSbTe2, AgBiS2, AgBiSe2
      Locality: synthetic
      Sample: quenched from T = 200 C
      _database_code_amcsd 0009220

      CELL PARAMETERS:    5.6820   5.6820   5.6820   90.000   90.000   90.000
      SPACE GROUP: Fm-3m     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    183.444
      Density (g/cm3):      6.896
      MAX. ABS. INTENSITY / VOLUME**2:      294.2993143    
      RIR:     13.896
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                27.18         82.07        3.2805    1   1   1         8
                31.49        100.00        2.8410    2   0   0         6
                45.13         67.24        2.0089    2   2   0        12
                53.49         34.38        1.7132    3   1   1        24
                56.07         21.59        1.6403    2   2   2         8
                65.74          9.25        1.4205    4   0   0         6
                72.51         11.79        1.3035    3   3   1        24
                74.71         23.77        1.2705    4   2   0        24
                83.32         16.81        1.1598    4   2   2        24
                89.66          6.03        1.0935    5   1   1        24
                89.66          2.01        1.0935    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.