In the course of its Eastern European expansion plans, ALAS International Baustoffproduktion AG privatised in the year 2005 the former state-owned Serbian association Vojvodinaput Rudnici nemetala Rakovac, which until 1999 had operated, among others, the Trachyte quarry Srebro Jezero. ALAS International is currently planning an expansion of mining. The aim of this diploma thesis was to create, on the basis of the mining documentation of the former operator, a conceptual mining study in which geological resources, mining methods, employment of machinery in loading and haulage and its operating efficiency were assessed. The raw data, which are rather scarce but sufficient for a conceptual mining study, were processed and evaluated with the state-of-the-art special mining program SURPAC. The following results were generated by the study: The geometry and volumes of the Trachyt deposit Srebro as well as its overburden layer were ascertained and presented. The influence of the general inclination of the pit walls on the waste-ore-ratio was calculated. The optimal size of the mining field was defined. The geometric mining development for the mining of the next 30 years as well as the expected reserves were modelled, calculated and represented. The machinery was examined with regard to loading and hauling. The hauling distances were depicted for the entire mining duration. The initial SUPRAC data was gathered and assembled for managing the operational documentation. The groundwork for further detailed investigation has thus been created.