Diamond
      Hom T, Kiszenick W, Post B
      Journal of Applied Crystallography 8 (1975) 457-458
      Accurate lattice constants from multiple reflection mesurements II.
      lattice constants of germanium, silicon and diamond
      Locality: unknown
      Sample: at T = 25 C
      _database_code_amcsd 0012842

      CELL PARAMETERS:    3.5670   3.5670   3.5599   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     45.294
      Density (g/cm3):      3.522
      MAX. ABS. INTENSITY / VOLUME**2:      12.86491527    
      RIR:      1.189
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                44.00        100.00        2.0580    1   1   1         8
                75.37         12.21        1.2611    2   2   0        12
                75.46         24.32        1.2599    2   0   2        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.