The submitted Bachelor’s thesis deals with heavy mineral assemblage of the basalt maar near Hodejov municipality. In theoretical part, some general problems of alkali basalt volcanism in Southern Slovakia, geology of the studied area, as well as the structure and the origin of basalt maar near Hodejov are summarized. All these work has been done as compilation of published literature. Practical part of the submitted thesis describes sampling strategy, methods of heavy mineral separation, data analysis and processing. The final part is dedicated to the definition of the heavy mineral association. Special attention was paid to garnets, whose origin and possible source rocks have been deciphered from chemical composition and crystallochemistry.