Process-oriented ore-body characterization of the Ag-polymetallic Rupice Deposit, Bosnia and Herzegovina (ULiège)

Abstract

The ongoing global need for necessary raw materials has resulted in increased awareness within the European Union, highlighting the importance of securing new sources of crucial minerals. In this context, the Rupice polymetallic deposit emerges as an outstanding discovery in Bosnia and Herzegovina, acquired by Adriatic Metals Plc. in 2017. This deposit holds special significance as the primary hard rock mine to be opened in the region in over three decades. Located within the metallogenic province of Vareš, the Rupice deposit displays a diverse polymetallic mineralization consisting of silver (Ag), gold (Au), zinc (Zn), lead (Pb), copper (Cu), barite (BaSO4), and various other elements. Its geological context within the metallogenic zone, combined with a history of varied mining activities, contributes to its complex structural and mineralogical characteristics. In response to this intricate geological pattern, this research sets out on a comprehensive process-oriented orebody characterization of the Rupice deposit. The primary objectives of the study are threefold: firstly, to unravel the mineral composition of the deposit, identify all mineral phases and observe textures; secondly, to interpret the distribution and connections of valuable metals, particularly Ag and Sb, within distinct mineral phases; and thirdly, to delve into the role played by trace elements, including germanium, mercury, phosphorus, and arsenic, in the mineralization processes. The analytical work was conducted in the University of Zagreb and University of Liege and included: optical microscopy core scanning (SWIR), SEM-EDS, LIBS and XRD. By addressing these multifaceted research objectives, we strive to provide valuable insights that contribute to the broader understanding of polymetallic deposits, further enhancing the knowledge base necessary for effective resource management and sustainable mining practices.