GEM (FR7.2)

The purpose of the Geochemistry and Experimental Mineralogy (GEM) platform is to provide logistical support to researchers studying the following main aspects of geochemistry and/or experimental mineralogy:

• Fluid-Mineral-Organism Interaction in Natural Context

• CO₂ Geological Storage (mineral storage),

• Experimental Metallogeny, Geomaterials and Nanomaterials Synthesis

• High Temperature Hydrothermalism in the crust and the mantle,

• (Bio)- Experimental Isotopic Geochemistry

This GEM platform has been labeled since 2019 Extra & Co platform as part of the Carnot ISIFoR and is used at more than 50 % for CCUS research.

• Geochemistry/mineralogy preparation rooms ( standard lab equipment)

• Instruments for characterizing and quantifying surfaces and interfaces (automatic titrator, zeta potential measurement, BET, granulometer for nanoparticles)

• Glovebox

• pH stat and autotitrator (Mettler Toledo)

• Nondispersive infrared sensor for dissolved organic carbon

• Other analytical services available at GET laboratory (Chemistry, ICPMS, DRX, SEM) and at Raimond Castaing Microanalysis Centre.

The GEM also aims to facilitate the development of new techniques sometimes unique in the world such as, for example, potentiometry and in situ pH measurement under hydrothermal conditions, coupling between sapphire window reactors and in situ spectroscopy (Infrared, UV-Visible, Raman), high pressure and high temperature experimentation.