Dear colleagues, We are thrilled to announce that we will be holding a one-day XMapTools workshop at the upcoming GAC-MAC conference in St. John's. Join us for this pre-conference workshop on 25 May in Newfoundland and Labrador, Canada, to explore the latest features of XMapTools. Quantitative chemical mapping with XMapTools: Workflows for EPMA, SEM and LA-ICP-MS This one-day pre-conference workshop will introduce XMapTools, a software solution for processing, analysing and interpreting chemical maps obtained using EPMA, SEM/EDS or LA-ICP-MS techniques. Participants will be guided through the entire process, from importing and standardising raw data, to generating quantitative chemical maps and performing supervised classification, to extracting useful petrological metrics such as modal abundances, local bulk compositions, and quantification of compositional zoning in minerals. The workshop will combine short lectures, live demonstrations and practical exercises using real datasets. Examples of applications involving the distribution of major, minor and trace elements in rocks, as well as thermobarometry, will be provided. This workshop is intended for early- to mid-career researchers, graduate students and laboratory technicians who wish to incorporate chemical mapping into their work. You can find information about the conference at: https://event.fourwaves.com/stjohns2026/pages All the best, Renée Tamblyn & Pierre Lanari Prof. Pierre Lanari | Institute of Earth Sciences, University of Lausanne | Géopolis (Room 3634), 1015 Lausanne, Switzerland url: pierrelanari.com <https://pierrelanari.com/> | program: xmaptools.ch <https://xmaptools.ch/> | phone: +41 (0)21 692 44 68