Giacomo Criniti is a mineral physicist and crystallographer interested in understanding the relationship between crystal chemistry, structure, and thermoelastic properties in high-pressure silicates and hydroxides. Before coming to Carnegie, Criniti obtained his Ph.D. in Experimental Geosciences from Bayerisches Geoinstitut, University of Bayreuth. His research aims to understand the relationship between crystal chemistry, structure, and thermoelastic properties in high-pressure silicates and hydroxides. He uses high-pressure devices like the multi-anvil press and diamond anvil cell, along with diffraction and spectroscopic techniques, in-house and at synchrotron facilities.

Previously, Criniti's work focused on synthesizing large single-crystals of high-pressure minerals, determining their equations of state, characterizing their pressure-induced structural and electronic phase transitions, and modeling the physical properties of candidate lower mantle rocks through thermodynamic calculations. At Carnegie, Criniti will conduct phase relation experiments in the multi-anvil press and the diamond anvil cell to determine the major element partitioning between bridgmanite - the most abundant mineral in Earth’s lower mantle - and coexisting phases in peridotitic and basaltic systems under controlled redox conditions.