The Cenozoic basalts are widely distributed in eastern China. Among the m, the Miocene and Pliocene alkaline basalts are the host rocks of ruby, sapphire, red zircon, olivine, pyrope, moonstone and pyroxene gem. So far varied primary gem deposits and mineral occurrences have been found in the alkaline basalts. Henceforth,a great attention should be devoted to the research, prospecting and assessment of the alkaline basaltic gem deposits.