Klockmannite
      Berry L G
      American Mineralogist 39 (1954) 504-509
      The crystal structure of covellite, CuS and klockmannite, CuSe
      _database_code_amcsd 0000066

      CELL PARAMETERS:    3.9380   3.9380  17.2500   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    231.671
      Density (g/cm3):      6.128
      MAX. ABS. INTENSITY / VOLUME**2:      97.67625299    
      RIR:      5.190
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.64         29.20        3.3456    1   0   1        12
                28.14        100.00        3.1715    1   0   2        12
                30.47         28.57        2.9333    1   0   3        12
                31.11         60.08        2.8750    0   0   6         2
                33.50          1.53        2.6750    1   0   4        12
                41.90          1.15        2.1562    0   0   8         2
                45.41         14.98        1.9974    1   0   7        12
                46.10         85.71        1.9690    1   1   0         6
                50.05         49.84        1.8225    1   0   8        12
                53.09          1.12        1.7250    0   0  10         2
                54.04          3.64        1.6969    2   0   1        12
                54.88         13.73        1.6728    2   0   2        12
                56.27          4.07        1.6348    2   0   3        12
                56.66         57.45        1.6245    1   1   6        12
                60.11          1.95        1.5393    1   0  10        12
                64.04          1.47        1.4540    1   1   8        12
                64.86          1.22        1.4375    0   0  12         2
                65.51          2.24        1.4248    1   0  11        12
                66.70          4.16        1.4022    2   0   7        12
                70.39         16.05        1.3375    2   0   8        12
                72.91          2.54        1.2975    1   1  10        12
                73.70          2.62        1.2854    2   1   1        24
                74.42         10.16        1.2749    2   1   2        24
                75.60          2.62        1.2578    2   1   3        24
                77.13          1.17        1.2366    1   0  13        12
                83.21          3.33        1.1610    1   1  12        12
                83.40         10.14        1.1588    1   0  14        12
                84.90          3.87        1.1422    2   1   7        24
                85.40         11.42        1.1368    3   0   0         6
                88.34         16.40        1.1064    2   1   8        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.