Deusavan S. Costa Filho is a researcher intern on the MSc in Mineralogy and Petrography Program (MPP) of the Instituto de Geociências, Universidade de Brasilia (UnB). Costa-Filho is part of research group which is studying the REE-bearing minerals on so-called Goiás Tin Province (GTP). Previously, Costa-Filho did Summer Academic Training (AT) at Colorado School of Mines under supervision of the Professor PhD Alexandre Gysi which resulted in the publication Gysi et al 2016. The AT was part of the Brazil Scientific Mobility Program (BSMP) a scholarship financed by the Brazilian Government. Since he graduated in December of 2017, passionate about thermodynamics experimental studies applied to petrology and mineralogy problems, he applied for the MSc at UnB under the orientation of the Professor PhD Nilson F. Botelho