(1) Similarly, silver has been described replacing a variety of silver minerals, pyrite, and galena .(2) This karsting provides highly permeable rocks in which the sulphide minerals sphalerite and galena represent the valuable mineralization.(3) The main ore minerals are galena , chalcopyrite, sphalerite, and tetrahedrite that are associated with quartz and barite gangue.(4) Vein minerals are barite, calcite, chalcopyrite, galena , pyrite, and sphalerite.(5) The primary ore minerals were not investigated, although galena and pyrite were found as relict masses on several occasions.