Tsumgallite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern
      Yang H, Lu R, Downs R T, Costin G
      Acta Crystallographica E62 (2006) i250-i252

      CELL PARAMETERS:   4.512247   9.783819   2.970119   90.00000   90.00000   90.00000
      SPACE GROUP: Pbnm

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Ga     0.04892   0.85366   0.25000     1.000     0.464
            O      0.70569   0.19914   0.25000     1.000     0.565
            Oh     0.19871   0.05298   0.25000     1.000     0.583
            H      0.37813   0.08170   0.25000     1.000     1.533

            X-RAY WAVELENGTH:     0.710730
            BOUNDS ON TWO THETA:    8.0  45.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/-  4 +/- 10 +/-  3
            MAX. ABS. INTENSITY / VOLUME**2:      283.6740405
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                 8.17         13.00        4.8919    0   2   0
                 9.78        100.00        4.0975    1   1   0
                12.13         11.93        3.3168    1   2   0
                15.27         55.31        2.6432    1   3   0
                15.91         35.79        2.5388    0   2   1
                16.29          7.22        2.4809    1   0   1
                16.53         20.05        2.4460    0   4   0
                16.81         86.87        2.4048    1   1   1
                17.94          6.05        2.2561    2   0   0
                18.30          6.84        2.2126    1   2   1
                18.42          5.33        2.1984    2   1   0
                18.84         15.34        2.1503    1   4   0
                19.79          1.82        2.0487    2   2   0
                20.55          6.06        1.9745    1   3   1
                21.50          9.35        1.8881    0   4   1
                21.89          1.14        1.8554    2   3   0
                23.01         12.87        1.7670    2   1   1
                23.35          3.97        1.7418    1   4   1
                24.13         45.62        1.6864    2   2   1
                24.55         13.91        1.6584    2   4   0
                24.98          5.19        1.6306    0   6   0
                25.90         11.73        1.5736    2   3   1
                26.54         35.19        1.5364    1   5   1
                27.45          1.19        1.4866    3   1   0
                27.48         14.49        1.4851    0   0   2
                27.61          6.93        1.4782    2   5   0
                28.21          5.15        1.4480    2   4   1
                28.41          7.96        1.4377    3   2   0
                28.58         14.06        1.4294    0   6   1
                29.28          9.33        1.3962    1   1   2
                29.95          6.34        1.3658    3   3   0
                30.19          1.84        1.3554    1   2   2
                30.50          7.32        1.3418    3   0   1
                30.66          9.54        1.3351    1   7   0
                30.80          3.46        1.3294    3   1   1
                30.98          3.64        1.3216    2   6   0
                31.66          2.61        1.2940    3   2   1
                31.65         12.74        1.2947    1   3   2
                32.30          5.32        1.2694    0   4   2
                33.06          2.61        1.2409    3   3   1
                33.08          2.46        1.2405    2   0   2
                33.35          1.91        1.2306    2   1   2
                33.59          3.11        1.2220    1   4   2
                34.01          1.52        1.2074    2   6   1
                34.94          6.01        1.1764    3   4   1
                36.40          4.46        1.1309    0   8   1
                36.75          4.63        1.1206    4   1   0
                37.23          2.28        1.1066    3   5   1
                37.25          5.99        1.1063    2   4   2
                37.27          1.65        1.1056    3   6   0
                37.36          2.00        1.1032    2   7   1
                37.54          2.44        1.0980    0   6   2
                38.37          1.64        1.0752    2   8   0
                39.39          1.25        1.0485    4   1   1
                39.42          3.47        1.0477    2   5   2
                39.88          3.14        1.0361    3   6   1
                40.01          4.34        1.0329    3   2   2
                40.38          1.27        1.0239    3   7   0
                40.92          3.38        1.0110    2   8   1
                41.17          3.43        1.0053    3   3   2
                41.25          4.71        1.0034    4   3   1
                41.58          4.31        0.9957    1   9   1
                41.71          5.62        0.9929    1   7   2
                41.96          2.17        0.9873    2   6   2
                42.31          1.01        0.9793    2   9   0
                42.36          1.38        0.9784    0  10   0
                42.41          1.88        0.9773    4   5   0
                42.73          1.74        0.9704    0   2   3
                43.10          3.34        0.9623    1   1   3
                43.75          1.62        0.9489    3   8   0
                43.75          1.62        0.9489    3   8   0
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.