Hydrocerussite
      Siidra O, Nekrasova D, Depmeier W, Chukanov N, Zaitsev A, Turner R
      Acta Crystallographica B74 (2018) 182-195
      Hydrocerussite-related minerals and materials: structural principles,
      chemical variations and infrared spectroscopy
      Locality: Merehead quarry, Somerset, England
      _database_code_amcsd 0020726

      CELL PARAMETERS:    5.2475   5.2475  23.6795   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    564.687
      Density (g/cm3):      6.824
      MAX. ABS. INTENSITY / VOLUME**2:      166.5164248    
      RIR:      7.946
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                11.21          3.13        7.8932    0   0   3         2
                19.89         27.15        4.4630    1   0   1         6
                20.94         27.06        4.2427    0   1   2         6
                24.70         77.31        3.6048    1   0   4         6
                27.20        100.00        3.2790    0   1   5         6
                33.01          8.28        2.7135    1   0   7         6
                34.08         34.46        2.6311    0   0   9         2
                34.17         55.19        2.6237    1   1   0         6
                36.07          8.97        2.4898    1   1   3        12
                39.86          1.41        2.2618    0   2   1         6
                40.42         24.43        2.2315    2   0   2         6
                42.62         15.40        2.1213    0   2   4         6
                43.07         17.54        2.1000    1   0  10         6
                44.21         18.24        2.0486    2   0   5         6
                46.69          1.40        1.9455    0   1  11         6
                48.25         12.38        1.8862    0   2   7         6
                49.03         28.99        1.8578    1   1   9        12
                53.94         16.30        1.6999    1   2   2        12
                54.25          3.07        1.6907    1   0  13         6
                55.72          3.60        1.6496    2   1   4        12
                56.10          2.58        1.6395    0   2  10         6
                57.04          6.81        1.6147    1   2   5        12
                58.20         13.38        1.5852    0   1  14         6
                58.53          6.97        1.5771    1   1  12        12
                59.12          3.84        1.5627    2   0  11         6
                60.45         12.69        1.5315    2   1   7        12
                61.18          4.15        1.5148    3   0   0         6
                62.42          3.61        1.4877    0   3   3         6
                62.42          1.99        1.4877    3   0   3         6
                62.52          1.25        1.4856    1   2   8        12
                65.70          1.21        1.4212    0   2  13         6
                67.35          3.02        1.3904    2   1  10        12
                69.25          4.24        1.3568    2   0  14         6
                70.09          3.65        1.3426    1   2  11        12
                71.75          1.51        1.3155    0   0  18         2
                71.92          2.00        1.3128    0   3   9         6
                71.92          1.64        1.3128    3   0   9         6
                71.98          3.46        1.3119    2   2   0         6
                73.13          3.68        1.2941    2   2   3        12
                75.92          6.24        1.2533    3   1   2        12
                76.52          1.33        1.2449    2   2   6        12
                76.87          1.68        1.2401    0   2  16         6
                78.53          2.39        1.2180    3   1   5        12
                79.54          3.40        1.2052    1   2  14        12
                79.79          3.68        1.2019    1   0  19         6
                79.82          3.00        1.2016    0   3  12         6
                79.82          1.95        1.2016    3   0  12         6
                81.49          5.40        1.1811    1   3   7        12
                81.92          2.77        1.1760    1   1  18        12
                82.09          3.28        1.1740    2   2   9        12
                85.95          2.76        1.1309    0   4   2         6
                86.88          3.38        1.1212    2   1  16        12
                89.74          1.07        1.0927    0   2  19         6
                89.77          3.06        1.0925    2   2  12        12
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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.