Measurement of natural radioactivity in granites and its
#0183;#32;The distribution of natural radionuclides (226 Ra, 232 Th and 40 K) in Granites and its quartzbearing gold at ElFawakhir area (Central Eastern Desert, Egypt) were measured by using ray spectroscopy [NaI (Tl) 3 #215; 3].XRay Fluorescence technique was used for chemical analyses of the studied samples. The specific activity of 226 Ra, 232 Th and 40 K values are in range (3 #177; to 43