Langite
      Gentsch M, Weber K
      Acta Crystallographica C40 (1984) 1309-1311
      Structure of langite, Cu4[(OH)6|SO4]*2H2O
      Locality: Allihies mine, County Cork, Ireland
      _database_code_amcsd 0009993

      CELL PARAMETERS:    7.1370   6.0310  11.2170   90.000   90.000   90.000
      SPACE GROUP: Pc        
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    482.816
      Density (g/cm3):      3.358
      MAX. ABS. INTENSITY / VOLUME**2:      56.63915826    
      RIR:      5.491
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.40        100.00        7.1370    1   0   0         1
                15.80          2.23        5.6085    0   0   2         1
                16.69          6.25        5.3119    0   1   1         2
                20.14          1.26        4.4098   -1   0   2         1
                20.85          1.83        4.2612    1   1   1         2
                20.85          2.11        4.2612   -1   1   1         2
                24.95         33.63        3.5685    2   0   0         1
                29.67          1.19        3.0107   -2   0   2         1
                30.17          1.42        2.9621   -2   1   1         2
                30.17          1.91        2.9621    2   1   1         2
                30.80          2.26        2.9031    1   1   3         2
                31.91          7.20        2.8043    0   0   4         1
                33.75         10.67        2.6559    0   2   2         2
                34.36          3.49        2.6100    1   0   4         1
                34.36         16.84        2.6100   -1   0   4         1
                36.08         29.21        2.4892    1   2   2         2
                36.08          5.39        2.4892   -1   2   2         2
                37.82          2.42        2.3790    3   0   0         1
                40.93         10.80        2.2049   -2   0   4         1
                40.93          4.18        2.2049    2   0   4         1
                42.43         17.08        2.1306    2   2   2         2
                42.43          6.99        2.1306   -2   2   2         2
                50.30          2.50        1.8141    3   0   4         1
                50.30          4.69        1.8141   -3   0   4         1
                51.20          2.56        1.7843    4   0   0         1
                51.58          5.64        1.7721   -3   2   2         2
                51.58          9.88        1.7721    3   2   2         2
                58.05          8.15        1.5889    0   2   6         2
                59.61          4.09        1.5509    1   2   6         2
                59.61          3.95        1.5509   -1   2   6         2
                61.50          2.74        1.5078    0   4   0         2
                61.61          1.96        1.5054    4   0   4         1
                61.61          1.58        1.5054   -4   0   4         1
                62.73          4.00        1.4811   -4   2   2         2
                62.73          3.10        1.4811    4   2   2         2
                63.01          4.45        1.4752    1   4   0         2
                64.16          2.54        1.4515   -2   2   6         2
                64.16          2.87        1.4515    2   2   6         2
                67.43          1.69        1.3889    2   4   0         2
                68.16          1.74        1.3758    1   0   8         1
                70.97          1.40        1.3280    0   4   4         2
                71.39          1.28        1.3213    3   2   6         2
                71.39          1.02        1.3213   -3   2   6         2
                72.38          2.13        1.3056   -1   4   4         2
                74.51          1.03        1.2735    3   4   0         2
                75.63          1.61        1.2573    5   2   2         2
                75.63          1.72        1.2573   -5   2   2         2
                76.55          2.35        1.2446   -2   4   4         2
                79.32          1.12        1.2079    3   0   8         1
                83.34          1.35        1.1595   -3   4   4         2
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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.