Tourmaline occurs as an accessory mineral in a variety of rocks including leucogranite, pegmatite, quartz veins and their country rocks in Haji abad area in SE Broujerd. Therefore, four types of tourmaline were distinguished based on its geological occurrences. Except the tourmaline in pegmatite, which is represented by Fe-rich schorl (Al = 6.62–6.85 apfu, Fe/(Fe + Mg) = 0.86–0.95), the rest of tourmalines from leucogranite, quartz veins and hornfels are of schorl-dravite solid-solution composition (Al = 6.41–6.77 apfu, Fe/(Fe +Mg) = 0.31–0.61), and they are richer in Zn (0.13 apfu on average) than the tourmaline from pegmatite (0.02 apfu on average). Tourmaline shows textural and compositional variations in relation with pegmatite type. Subhedral to euhedral prismatic, very fine- to medium-grained (<6 mm - 10 cn), zoned grains are most common. In the country rock, tourmaline a pp€an as prismatic-euhedral very fine grained (<6 mm) crystals. Their Fe/lVIg value charges considerably amongt the different pegmatite types providing insight into the degree of evolution of the associated pegmatites Fe and poorest in Mg are associated vrith the most evolved bodies. Tourmaline from the country rocks shows compositional characteristics in herited from the host schists: similarity of the shape of the REE patterns for tourmaline and the schists, and a high content in Cr, I{f, Th and U. The Jurassic Boroujerd Granitoid Complex, located in Sanandaj-Sirjan zone in west of Iran, consists essentially of quartz diorite, granodiorite and monzogranite which are cut by aplitic and pegmatitic and quartz-tourmaline veins of a few centimetres to 3 meters in thickness. Tourmaline forms one of major minerals in the pegmatite and hydrothermal veins. It also occurs as nodules in the monzogranite. The tourmalines are alkali-rich, with Na being the dominant alkali element present and having small amounts of X-site vacancy. The dominant variability in composition seems controlled by the exchange vector CaMgOn lALl(OH) 1. Chondritenormalized patterns of the rare-earth elements point out the possible contribution of hydrothermal processes to tourmaline formation. The composition of tourmaline indicates the involvement of coupled substitutions i.e., alkalidefect and proton-deficient substitutions, which the latter one is more effective.