A study on three mineral pieces of the Natural History Museum at the UNMSM by using physical techniques. Revista de Investigación de Física, [S. l.], v. 23, n. 2, p. 32–42, 2020. DOI: 10.15381/rif.v23i2.20298. Disponível em: https://revistasinvestigacion.unmsm.edu.pe/index.php/fisica/article/view/20298.. Acesso em: 17 jul. 2024.