Szomolnokite
Diffraction data computed using the structure from the paper listed below, 
along with the cell parameters refined from single crystal data of R070620
      Wildner M, Giester G
      Neues Jahrbuch fur Mineralogie, Monatshefte 1991 (1991) 296-306
      The crystal structures of kieserite-type compounds.
      I. Crystal structures of Me(II)SO4*H2O (Me = Mn,Fe,Co,Ni,Zn)
      Locality: synthetic

      CELL PARAMETERS:   7.0770  7.5370  7.7650   90.000  118.650   90.000
      SPACE GROUP: C2/c      

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Fe     0.00000   0.50000   0.00000     1.000     1.307
            S      0.00000   0.15307   0.25000     1.000     1.208
            O      0.16970   0.04290   0.39850     1.000     1.777
            O      0.09560   0.26830   0.15600     1.000     1.656
            O      0.00000   0.64440   0.25000     1.000     1.639
            H      0.10800   0.70900   0.31500     1.000     6.948

            X-RAY WAVELENGTH:     1.541838
            BOUNDS ON TWO THETA:    5.0  90.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/-  5 +/-  6 +/-  6
            MAX. ABS. INTENSITY / VOLUME**2:      19.65111533    
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                18.27         33.74        4.8560   -1   1   1
                18.51         39.46        4.7930    1   1   0
                23.61          9.80        3.7685    0   2   0
                25.88        100.00        3.4430   -1   1   2
                26.40         21.66        3.3763    1   1   1
                27.04         31.26        3.2978    0   2   1
                28.75         49.34        3.1053    2   0   0
                34.78         15.85        2.5791   -2   2   1
                35.52         44.68        2.5273    0   2   2
                37.02          2.96        2.4280   -2   2   2
                37.53          1.25        2.3965    2   2   0
                37.63          4.81        2.3905    1   1   2
                38.66         11.40        2.3290    1   3   0
                40.45         19.82        2.2298   -3   1   2
                42.92          8.25        2.1073   -1   3   2
                43.25          3.30        2.0917    1   3   1
                43.59         10.70        2.0762   -2   2   3
                44.47          1.32        2.0371    2   2   1
                45.43         13.30        1.9962    3   1   0
                46.69          2.03        1.9454    0   2   3
                46.95          6.17        1.9353   -2   0   4
                48.30          3.47        1.8843    0   4   0
                49.73          8.14        1.8335   -1   1   4
                51.35          1.29        1.7794    1   3   2
                51.68          2.49        1.7686   -4   0   2
                53.21          5.79        1.7215   -2   2   4
                53.59          1.60        1.7101   -3   3   2
                53.81          2.30        1.7036    0   0   4
                54.34         15.54        1.6881    2   2   2
                55.75          8.47        1.6489    0   4   2
                56.82          9.94        1.6204   -2   4   2
                56.88          1.95        1.6187   -3   3   3
                57.57          4.08        1.6011   -4   2   2
                57.70          9.00        1.5977    3   3   0
                58.11          7.60        1.5874   -4   0   4
                58.93          1.97        1.5672   -4   2   3
                59.54          2.16        1.5526    4   0   0
                59.55          1.61        1.5523    0   2   4
                59.64          1.05        1.5502   -4   2   1
                61.38          7.71        1.5105   -1   3   4
                62.45          1.12        1.4871    2   4   1
                63.39          2.91        1.4674   -3   3   4
                63.51          2.54        1.4649    1   5   0
                63.60          2.44        1.4629   -4   2   4
                64.04          3.56        1.4540    3   1   2
                64.23          1.60        1.4502    0   4   3
                64.47          1.24        1.4453    1   1   4
                64.96          1.72        1.4356    4   2   0
                66.57          2.64        1.4046   -1   5   2
                67.94          1.17        1.3797   -5   1   2
                70.26          1.08        1.3397   -5   1   4
                70.62          2.75        1.3338    2   4   2
                71.22          1.10        1.3240   -4   2   5
                73.43          5.57        1.2895   -4   4   2
                74.72          2.22        1.2704    1   3   4
                75.00          2.06        1.2663   -3   5   2
                75.27          1.14        1.2625   -4   4   1
                75.42          3.03        1.2603    2   0   4
                78.77          2.44        1.2149   -2   2   6
                79.14          1.29        1.2101   -1   1   6
                80.19          1.55        1.1969   -5   3   4
                81.48          2.05        1.1812   -4   2   6
                82.91          1.93        1.1645    2   6   0
                84.54          1.77        1.1461   -5   1   6
                87.64          1.29        1.1135    5   3   0
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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.