Radionuclide activities (U238 and Th232) in the normal person kidney gallstone and another one with cancer disease have been determined experimentally by ɣ-ray spectroscopy and EDS measurements. U238 and Th232 concentrations were found to be very high in the kidney gallstone belonging to cancer patient indicating a strong radionuclide-cancer correlation. The IR and SEM were also investigated in order to study the effect of kidney gallstone water washing in reducing the organic and inorganic contaminates.