Digenite
      Yamamoto K, Kashida S
      Journal of Solid State Chemistry 93 (1991) 202-211
      X-ray study of the average structures of Cu2Se and Cu1.8S in the
      room temperature and the high temperature phases
      Note: Sample: Cu1.8S (low), T = 300 K
      Locality: synthetic
      _database_code_amcsd 0019150

      CELL PARAMETERS:    5.5640   5.5640   5.5640   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    172.251
      Density (g/cm3):      5.744
      MAX. ABS. INTENSITY / VOLUME**2:      61.27372057    
      RIR:      3.473
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                27.77         24.06        3.2124    1   1   1         8
                32.18         49.75        2.7820    2   0   0         6
                46.14        100.00        1.9672    2   2   0        12
                54.71         18.84        1.6776    3   1   1        24
                57.37          1.64        1.6062    2   2   2         8
                67.31          4.17        1.3910    4   0   0         6
                85.50          7.92        1.1357    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.