Hydroniumpharmacosiderite
      Mills S J, Kampf A R, Williams P A, Leverett P, Poirier G, Raudsepp M, Francis C A
      Mineralogical Magazine 74 (2010) 863-869
      Hydroniumpharmacosiderite, a new member of the pharmacosiderite supergroup
      from Cornwall, UK: structure and description
      Locality: Cornwall, UK
      _database_code_amcsd 0017882

      CELL PARAMETERS:    7.9587   7.9587   7.9587   90.000   90.000   90.000
      SPACE GROUP: P-43m     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    504.111
      Density (g/cm3):      2.586
      MAX. ABS. INTENSITY / VOLUME**2:      77.66727679    
      RIR:      9.778
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                11.12        100.00        7.9587    1   0   0         6
                19.32         20.31        4.5950    1   1   1         4
                22.34          8.77        3.9794    2   0   0         6
                25.02          1.75        3.5592    2   1   0        24
                27.45         18.99        3.2491    2   1   1        12
                31.80         14.33        2.8138    2   2   0        12
                33.79          3.96        2.6529    3   0   0         6
                33.79          2.98        2.6529    2   2   1        12
                35.67         11.58        2.5168    3   1   0        24
                37.48         14.56        2.3996    3   1   1        12
                39.21          3.22        2.2975    2   2   2         4
                42.50          1.90        2.1271    3   2   1        24
                45.59          1.02        1.9897    4   0   0         6
                47.08          1.90        1.9303    4   1   0        24
                48.53          3.92        1.8759    4   1   1        12
                48.53          1.10        1.8759    3   3   0        12
                49.95          1.86        1.8259    3   3   1        12
                51.34          5.55        1.7796    4   2   0        24
                52.70          2.37        1.7367    4   2   1        24
                54.04          1.09        1.6968    3   3   2        12
                56.66          3.56        1.6246    4   2   2        12
                57.94          5.33        1.5917    4   3   0        24
                60.44          1.75        1.5317    3   3   3         4
                60.44          2.84        1.5317    5   1   1        12
                64.09          2.52        1.4531    5   2   1        24
                66.45          5.33        1.4069    4   4   0        12
                67.62          2.02        1.3854    4   4   1        12
                68.78          1.63        1.3649    4   3   3        12
                69.93          2.83        1.3453    5   3   1        24
                78.87          1.03        1.2137    5   3   3        12
                87.54          1.07        1.1144    5   5   1        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.