Silver
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R070416
      Wyckoff R W G
      Crystal Structures 1 (1963) 7-83
      Second edition. Interscience Publishers, New York, New York
      Cubic closest packed, ccp, structure

      CELL PARAMETERS:   4.087520   4.087520   4.087520   90.00000   90.00000   90.00000
      SPACE GROUP: Fm3m
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                38.17        100.00        2.3599    1   1   1
                44.35         46.77        2.0438    2   0   0
                64.48         25.61        1.4452    2   2   0
                77.43         27.18        1.2324    3   1   1
                81.57          7.69        1.1800    2   2   2
                81.57          7.69        1.1800    2   2   2
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.