Full Professor, with exclusive dedication (DE) at the Federal University of Rio Grande do Sul (UFRGS). He was a scholarship holder and coordinator of a research group at CNPq. He holds a degree in Geology from the University of Vale do Rio dos Sinos (1985), a degree in Physical and Biological Sciences from UFRGS (1973), a master's degree in Geosciences from UFRGS (1992) and a PhD in Geosciences from UFRGS (1995) and the University of Poitiers (France) in the same year. He has experience in Geochemistry and Metallogenesis, with an emphasis on Mineralogy and Crystallochemistry. He is a reviewer for Elsevier and the Revista Brasileiras em Geociências, among others. He works with numerous analytical techniques such as: X-ray diffraction, infrared spectroscopy, Raman and Mossbauer, scanning and transmission electron microscopy, X-ray fluorescence, and electron microprobe. Main research locations: Pitinga (AM), Catalão I (GO), Seis Lagos (AM), Lages (SC) and Anitápolis (SC). ORCID 0000-0001-58752115