Hauyne
Diffraction data computed using the structure from the paper listed below, 
along with the cell parameters refined from single crystal data of R070557
      Hassan I, Grundy H D
      The Canadian Mineralogist 29 (1991) 123-130
      The crystal structure of hauyne at 293 and 153 K
      Sample: at T = 153 K
      Locality: Valle Biacheela, Sacrafano, Italy

      CELL PARAMETERS:   9.0700  9.0700  9.0700   90.000   90.000   90.000
      SPACE GROUP: P-43n     

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Al     0.25000   0.00000   0.50000     1.000     0.553
            Si     0.25000   0.50000   0.00000     1.000     0.474
            Ol     0.14430   0.15580   0.46690     1.000     1.579
            K      0.66400   0.66400   0.66400     0.200     1.026
            Ca     0.70090   0.70090   0.66400     0.300     1.974
            Na     0.73920   0.73920   0.73920     0.540     1.421
            S      0.46690   0.46690   0.46690     0.190     3.553
            O      0.59950   0.59950   0.46690     0.750    11.449

            X-RAY WAVELENGTH:     1.541838
            BOUNDS ON TWO THETA:    0.0  90.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/-  8 +/-  8 +/-  8
            MAX. ABS. INTENSITY / VOLUME**2:      36.04390524    
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                13.81         15.38        6.4135    1   1   0
                24.03        100.00        3.7028    2   1   1
                27.82          7.53        3.2067    2   2   0
                31.18         15.65        2.8682    3   1   0
                34.25         19.10        2.6183    2   2   2
                37.09         11.29        2.4241    3   2   1
                39.75          3.21        2.2675    4   0   0
                42.28         15.51        2.1378    3   3   0
                42.28         21.38        2.1378    4   1   1
                49.21          4.64        1.8514    4   2   2
                51.37          5.29        1.7788    4   3   1
                57.48          3.93        1.6034    4   4   0
                59.42          3.76        1.5555    5   3   0
                59.42          1.94        1.5555    4   3   3
                61.32          1.54        1.5117    6   0   0
                61.32          2.91        1.5117    4   4   2
                63.20          4.93        1.4713    5   3   2
                68.64          4.22        1.3674    6   2   2
                70.41          1.05        1.3373    6   3   1
                72.15          3.14        1.3091    4   4   4
                77.30          2.94        1.2343    6   3   3
                77.30          2.73        1.2343    7   2   1
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.