GONDIM, ANTONIO CARLOS. Ponta Grossa and Castro zones in Paraná talc district, Brazil, ore properties and mineral industry. Boletim Paranaense de Geociências, [S. l.], v. 50, 2002. DOI: 10.5380/geo.v50i0.4150. Disponível em: https://revistas.ufpr.br/geociencias/article/view/4150. Acesso em: 4 jan. 2026.