Initiation of the principles of a market economy in Poland extracted a big effect on methods of settlement and application of mineral reserves, especially of economic reserves, which should be object of profitable mining. Last years in the columns of journals and among the specialist there was carried a discussion about valuation of reserves and range of changes. Treatment of results of inquiry should be disposed mines and the Treasury to verification of method of qualification and valuation of economic reserves. In order to obtain a valuation of reserves author of this article used the opinion of experts. The results of this method, described in the article, should persuade mines and the Ministry of the Treasury to verification of a method of valuation of economic reserves.

The paper presents tendencies of development and change in mining technology of copper ore deposits over thirty years of experience. Technical aspects of formation and minimization of the dilution processes in Polish copper ore mines, whose total yearly output amounts to 28-32 million tonnes of copper ore, have been thoroughly analyzed.