TY - JOUR T1 - Ceramic raw materials from the State of Maranhão, Brazil. Part 1: chemical and mineralogical characterization and technological properties of clays from São Luis, Rosário, Pinheiro and Mirinzal JO - Rem: Revista Escola de Minas A1 - Mercury, José Manuel Rivas A1 - Correia, Gricirene Sousa A1 - Vasconcelos, Nazaré Socorro Lemos Silva A1 - Cabral Jr., Aluísio Alves A1 - Angélica, Rômulo Simões SN - 0370-4467 UL - 10.1590/S0370-44672012000400012 VL - 65 Y1 - 2012 PB - Brasil ER -