Stromeyerite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R060909
      Baker C L, Lincoln F J, Johnson A W S
      Acta Crystallographica B47 (1991) 891-899
      A low-temperature structural phase transformation in CuAgS
      Locality: Gowganda, Ontario, Canada
      Sample: T = 298 K

      CELL PARAMETERS:   4.066000   6.631531   7.979562   90.00000   90.00000   90.00000
      SPACE GROUP: Cmc2_1
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                25.79         11.45        3.4663    1   1   0
                26.98         29.51        3.3158    0   2   0
                29.25         15.14        3.0619    0   2   1
                34.35        100.00        2.6167    1   1   2
                35.27         12.95        2.5501    0   2   2
                43.70          4.23        2.0748    0   2   3
                44.64         16.46        2.0330    2   0   0
                45.54         15.22        1.9949    0   0   4
                46.85          1.65        1.9421    1   3   0
                48.30         11.31        1.8870    1   3   1
                52.46         15.22        1.7462    1   3   2
                52.89          4.73        1.7332    2   2   0
                53.68          4.40        1.7094    0   2   4
                54.21          3.77        1.6937    2   2   1
                55.48          1.70        1.6579    0   4   0
                58.08          2.60        1.5897    2   2   2
                58.94          5.20        1.5685    1   3   3
                60.53          1.13        1.5310    0   4   2
                64.18          1.92        1.4521    2   2   3
                65.61          6.12        1.4239    2   0   4
                72.25          1.77        1.3083    2   2   4
                75.42          1.91        1.2609    1   5   0
                75.49          3.17        1.2599    3   1   2
                76.79          2.90        1.2417    1   1   6
                77.43          1.73        1.2330    1   3   5
                84.80          1.22        1.1435    3   3   1
                88.01          1.21        1.1098    3   3   2
                89.28          1.13        1.0973    1   3   6
                89.28          1.13        1.0973    1   3   6
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.