Rhomboclase
      Majzlan J, Navrotsky A, McCleskey R B, Alpers C N
      European Journal of Mineralogy 18 (2006) 175-186
      Thermodynamic properties and crystal structure refinement of
      ferricopiapite, coquimbite, rhomboclase, and Fe2(SO4)3(H2O)5
      Locality: synthetic
      _database_code_amcsd 0007142

      CELL PARAMETERS:    9.7226  18.2800   5.4270   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    964.536
      Density (g/cm3):      2.234
      MAX. ABS. INTENSITY / VOLUME**2:      29.06484004    
      RIR:      4.236
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 9.68        100.00        9.1400    0   2   0         2
                17.04          1.80        5.2026    0   1   1         4
                18.25          1.80        4.8613    2   0   0         2
                18.73         18.11        4.7388    1   0   1         4
                20.70          2.59        4.2920    2   2   0         4
                21.12          7.11        4.2069    1   2   1         8
                21.93         14.28        4.0527    0   3   1         4
                23.79          1.61        3.7407    1   3   1         8
                25.07          9.07        3.5520    2   1   1         8
                26.77         15.46        3.3297    2   4   0         4
                27.11         20.08        3.2895    1   4   1         8
                28.68         19.56        3.1128    2   3   1         8
                29.31          2.56        3.0467    0   6   0         2
                29.46          1.15        3.0321    0   5   1         4
                32.17          2.06        2.7825    3   0   1         4
                33.67          4.78        2.6619    3   2   1         8
                34.48          1.20        2.6013    0   2   2         4
                34.75          1.46        2.5816    2   6   0         4
                34.87          1.02        2.5727    2   5   1         8
                35.01          1.25        2.5627    1   6   1         8
                35.73          1.27        2.5129    1   2   2         8
                36.98          3.37        2.4306    4   0   0         2
                38.32          4.32        2.3490    4   2   0         4
                38.59          1.72        2.3332    0   4   2         4
                38.62          1.30        2.3313    2   6   1         8
                39.28          2.75        2.2936    2   2   2         8
                39.43          1.73        2.2850    0   8   0         2
                42.11          1.81        2.1460    4   4   0         4
                42.69          2.04        2.1181    2   7   1         8
                43.00          4.33        2.1035    2   4   2         8
                43.99          2.32        2.0582    1   8   1         8
                44.08          1.64        2.0546    3   6   1         8
                44.72          3.88        2.0263    0   6   2         4
                50.87          2.00        1.7949    5   2   1         8
                51.59          1.37        1.7715    2   9   1         8
                52.34          3.32        1.7478    0   8   2         4
                53.96          1.41        1.6993    5   4   1         8
                58.85          1.00        1.5691    5   6   1         8
                59.38          3.37        1.5564    4   6   2         8
                61.64          1.07        1.5046    6   3   1         8
                63.70          1.20        1.4610    4  10   0         4
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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.