The Zhongtiaoshan area is one of the famous concentration areas of copper deposits in China. A large quantity of tourmaline has been found in the hydro- thermal-sedi-lnelrtary formation which hosts Hu-Bi type stratabound copper de- posits, the calcalkaline subvolcanic-volcanic sedimentary rocks which host the To- ngkuangyu type copper deposits, and other geological environments of this area. The content of tourmaline can be more than 50% in tourmalinite, but varies in the range of 5-40% in other rocks. Due to the difference of formfug conditions and manners in different geological envirollments, tourmalines show obviously different optical properties and typomorphic characteristics. All tourmalines are dravite-schorl series and contain virtually no lithium.They were formed as a result of hydrothermal deposition in submarine basin, through volcan ic hydrothermal exhalation and hydrothermal metasomatism which, however, were all related to magmatic activities in the Zhongtiaoshan area in 2100 Ma age or so,