Covellite
      Evans H T, Konnert J A
      American Mineralogist 61 (1976) 996-1000
      Crystal structure refinement of covellite
      Locality: Summitville, Colorado
      _database_code_amcsd 0000534

      CELL PARAMETERS:    3.7938   3.7938  16.3410   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    203.685
      Density (g/cm3):      4.676
      MAX. ABS. INTENSITY / VOLUME**2:      36.13991950    
      RIR:      2.517
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                10.83          8.20        8.1705    0   0   2         2
                21.75          3.48        4.0852    0   0   4         2
                27.14          9.65        3.2855    1   0   0         6
                27.69         36.01        3.2211    1   0   1        12
                29.30         55.04        3.0483    1   0   2        12
                31.81        100.00        2.8134    1   0   3        12
                32.89         49.51        2.7235    0   0   6         2
                35.05          2.07        2.5603    1   0   4        12
                38.87          4.13        2.3171    1   0   5        12
                43.14          1.42        2.0968    1   0   6        12
                44.35          2.35        2.0426    0   0   8         2
                47.80         20.30        1.9030    1   0   7        12
                47.96         54.89        1.8969    1   1   0         6
                52.77         20.69        1.7347    1   0   8        12
                53.24          3.49        1.7205    1   1   4        12
                56.28          4.35        1.6345    2   0   1        12
                57.20          2.97        1.6105    2   0   2        12
                58.70          5.11        1.5728    2   0   3        12
                59.38         20.36        1.5566    1   1   6        12
                63.59          2.78        1.4631    1   0  10        12
                69.43          1.74        1.3536    1   0  11        12
                70.04          3.73        1.3435    2   0   7        12
                74.06          3.85        1.2801    2   0   8        12
                77.01          2.14        1.2382    2   1   1        24
                77.80          1.35        1.2277    2   1   2        24
                79.10          1.38        1.2107    2   1   3        24
                89.00          1.59        1.0999    1   0  14        12
                89.36          2.13        1.0963    2   1   7        24
                89.49          2.17        1.0952    3   0   0         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.