Clausthalite
      Wyckoff R W G
      Crystal Structures 1 (1963) 85-237
      Second edition. Interscience Publishers, New York, New York
      rocksalt structure
      _database_code_amcsd 0011373

      CELL PARAMETERS:    6.1243   6.1243   6.1243   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    229.704
      Density (g/cm3):      8.273
      MAX. ABS. INTENSITY / VOLUME**2:      499.9317707    
      RIR:     19.675
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.19         35.07        3.5359    1   1   1         8
                29.16        100.00        3.0622    2   0   0         6
                41.71         72.01        2.1653    2   2   0        12
                49.35         15.17        1.8465    3   1   1        24
                51.71         24.27        1.7679    2   2   2         8
                60.47         10.72        1.5311    4   0   0         6
                66.55          5.17        1.4050    3   3   1        24
                68.52         27.84        1.3694    4   2   0        24
                76.15         19.51        1.2501    4   2   2        24
                81.70          2.44        1.1786    5   1   1        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.