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The paper presents the results of the study on the variability of volumetric density of individual lithological types in the Cu-Ag deposit in the Lubin-Glogow Copper District (the Polkowice-Sieroszowice mining area). In the examined deposit, the three main lithological types are made of eighteen ore types with different petrographic and mineralogical composition. Six lithological units with the largest share in the deposit resources were selected for the examination. The statistical description has shown that the ...