Melanovanadite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R050555
      Konnert J A, Evans H T
      American Mineralogist 72 (1987) 637-644
      Crystal structure and crystal chemistry of melanovanadite, a natural vanadium
      bronze

      CELL PARAMETERS:   6.364437   17.98890   6.287248   110.3322   101.6131   82.79399
      SPACE GROUP: P-1
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                10.55        100.00        8.4186    0   2   0
                14.43          1.76        6.1579    0  -1   1
                14.92          1.65        5.9550    1   1   0
                15.52          1.26        5.7255   -1   1   0
                18.27          3.19        4.8656   -1   2   0
                19.09          4.72        4.6590   -1   0   1
                21.14         26.86        4.2093    0   4   0
                21.30         12.90        4.1780    0   2   1
                21.61         12.23        4.1188    0  -4   1
                23.17          7.71        3.8438    1  -2   1
                28.07         11.69        3.1820    1  -4   1
                28.72          9.72        3.1114    2   0   0
                29.67          3.12        3.0137   -2  -2   1
                29.69         17.41        3.0117   -1  -2   2
                30.09          6.96        2.9725    0   4   1
                30.04         17.84        2.9775    2   2   0
                30.23          3.85        2.9596   -2   0   1
                30.46          4.33        2.9369    0  -6   1
                30.81          3.06        2.9051    0   0   2
                31.10          1.23        2.8784    0  -4   2
                31.42          8.86        2.8495   -1  -4   2
                31.72          3.20        2.8232   -1  -6   1
                31.92          1.22        2.8062    0   6   0
                31.73          1.34        2.8221   -1   0   2
                34.34         10.08        2.6131   -2   2   1
                34.83          2.19        2.5776    2   4   0
                35.05          1.45        2.5618    1  -2   2
                35.72          1.05        2.5153    1  -6   1
                35.91          1.80        2.5022    0   2   2
                36.30          7.28        2.4763    1   0   2
                39.32          1.17        2.2928    2  -4   1
                40.48          3.02        2.2297    0  -8   1
                42.48          1.57        2.1289   -1   6   1
                43.02          1.74        2.1035    2   4   1
                43.33          1.75        2.0890    0   4   2
                43.77          1.73        2.0689   -1  -8   2
                43.65          1.25        2.0743    3   0   0
                44.79          1.27        2.0239   -2   6   0
                44.93          1.62        2.0179    1  -8   1
                46.71          2.48        1.9452   -1   0   3
                46.99          1.61        1.9344   -2  -8   1
                46.93          1.16        1.9367    0   0   3
                47.16          1.10        1.9276    1   4   2
                47.39          1.76        1.9189    0  -6   3
                48.44          4.18        1.8797   -3  -4   2
                49.58          1.26        1.8391   -2   6   1
                49.75          5.01        1.8329    3  -2   1
                50.45          1.39        1.8092    2   6   1
                50.81          2.93        1.7972    0   8   1
                51.67          1.96        1.7692   -1 -10   1
                51.56          1.41        1.7729   -1  -8   3
                51.84          2.11        1.7640   -1   2   3
                55.22          2.08        1.6636    1 -10   1
                56.18          1.34        1.6373   -2   2   3
                56.84          1.28        1.6198   -3  -2   3
                58.14          1.14        1.5866    3  -6   1
                58.09          2.13        1.5878   -4  -2   1
                58.53          1.01        1.5769   -1 -10   3
                58.79          1.97        1.5708   -4   0   1
                58.81          1.23        1.5701   -1  -4   4
                58.94          1.09        1.5671    3   0   2
                59.52          1.27        1.5530   -3   0   3
                62.37          1.18        1.4888    4   4   0
                63.19          1.23        1.4714   -1  -8   4
                69.56          1.37        1.3513   -1  12   0
                69.67          1.28        1.3495    2  10   1
                69.67          1.28        1.3495    2  10   1
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.