Sulvanite
Diffraction data computed using the structure from the paper listed below, 
along with the cell parameters refined from the powder pattern of R060853
      Trojer F J
      American Mineralogist 51 (1966) 890-894
      Refinement of the structure of sulvanite
      Note: symmetry constraints on B(i,j) reported incorrectly

      CELL PARAMETERS:   5.3040  5.3040  5.3040   90.000   90.000   90.000
      SPACE GROUP: P-43m     

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Cu     0.50000   0.00000   0.00000     1.000     1.219
            V      0.00000   0.00000   0.00000     1.000     0.405
            S      0.23720   0.23720   0.23720     1.000     0.990

            X-RAY WAVELENGTH:     1.541838
            BOUNDS ON TWO THETA:    5.0  90.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/-  4 +/-  4 +/-  4
            MAX. ABS. INTENSITY / VOLUME**2:      67.27847800    
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                16.71        100.00        5.3040    1   0   0
                23.72          1.27        3.7505    1   1   0
                29.16         78.92        3.0623    1   1   1
                33.80         15.05        2.6520    2   0   0
                37.93         31.87        2.3720    2   1   0
                41.71          1.47        2.1653    2   1   1
                48.55         86.32        1.8752    2   2   0
                51.70          1.93        1.7680    3   0   0
                51.70         16.19        1.7680    2   2   1
                57.64         24.86        1.5992    3   1   1
                60.46          3.23        1.5311    2   2   2
                63.21         10.43        1.4711    3   2   0
                71.10         10.69        1.3260    4   0   0
                73.64          4.45        1.2864    4   1   0
                73.64          2.11        1.2864    3   2   2
                78.63          7.71        1.2168    3   3   1
                81.08          3.07        1.1860    4   2   0
                83.53          4.16        1.1574    4   2   1
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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.