Liskeardite
      Grey I E, Mumme W G, Macrae C M, Caradoc-Davies T, Price J R, Rumsey M S, Mills S J
      Mineralogical Magazine 77 (2013) 3125-3135
      Chiral edge-shared octahedral chains in liskeardite, [(Al,Fe)32(AsO4)18(OH)42(H2O)22]
      *52H2O, an open framework mineral with a pharmacoalumite-related structure
      Note: T = 100 K
      Locality: Marke Valley mine, Liskeard District, Cornwall, UK
      _database_code_amcsd 0020528

      CELL PARAMETERS:   24.5760   7.7540  24.6410   90.000   90.190   90.000
      SPACE GROUP: I2        
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   4695.620
      Density (g/cm3):      1.977
      MAX. ABS. INTENSITY / VOLUME**2:      42.72274020    
      RIR:      7.035
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 5.07         99.00       17.4296   -1   0   1         2
                 5.09        100.00       17.3719    1   0   1         2
                 7.17         14.22       12.3204    0   0   2         2
                 7.19         18.07       12.2879    2   0   0         2
                10.15         13.56        8.7148   -2   0   2         2
                10.18         13.56        8.6860    2   0   2         2
                11.37          1.67        7.7823    1   0   3         2
                11.37          2.30        7.7813   -3   0   1         2
                11.97          5.35        7.3964    0   1   1         2
                11.97          7.42        7.3947    1   1   0         2
                15.72          2.34        5.6384    0   1   3         2
                15.74          2.48        5.6314    3   1   0         2
                17.32          1.01        5.1202    2   1   3         2
                18.74          1.90        4.7354   -1   1   4         2
                18.79          1.77        4.7238    4   1   1         2
                21.35          1.01        4.1611   -3   1   4         2
                21.36          1.67        4.1592    0   1   5         2
                21.40          1.19        4.1514    5   1   0         2
                24.06          1.99        3.6982    0   2   2         2
                24.07          1.55        3.6973    2   2   0         2
                24.81          1.16        3.5888    1   1   6         2
                24.84          1.36        3.5847   -6   1   1         2
                25.64          1.00        3.4741    7   0   1         2
                25.68          1.05        3.4688    3   2   1         2
                25.85          1.39        3.4471   -5   1   4         2
                25.90          1.50        3.4398    4   1   5         2
                26.09          1.02        3.4161   -6   0   4         2
                26.87          1.42        3.3175   -6   1   3         2
                26.90          1.28        3.3146    3   1   6         2
                28.15          1.13        3.1699   -4   2   2         2
                28.16          1.14        3.1688    2   2   4         2
                28.81          1.15        3.0992    2   1   7         2
                28.82          1.21        3.0979   -7   1   2         2
                29.53          1.04        3.0247   -1   2   5         2
                29.58          1.09        3.0203    5   2   1         2
                29.88          1.25        2.9900   -2   0   8         2
                30.00          1.18        2.9784    8   0   2         2
                30.58          1.24        2.9237   -5   1   6         2
                30.68          1.25        2.9143    6   1   5         2
                31.32          1.19        2.8562   -5   2   3         2
                31.34          1.30        2.8540    3   2   5         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.