Evaluation of Clayey Raw Materials and Ceramic Masses from Ceramic Building Material Companies Located in Northeastern Brazil. - Correia, Gricirene Sousa; Vaz, Thales Henrique Silva; da Costa, Fabiana Pereira; da Silva, Mauro Francisco Pinheiro; da Silva, Wellington Marcos; Paiva, Antonio Ernandes Macêdo; Cabral, Aluísio Alves; Rodrigues, Alisson Mendes (Minerals (2075-163X), 2024)