[en] The Santa Gertrudes Ceramic Polo (PCSG) is the largest national producer of ceramic tiles, located in east-central region of Sao Paulo, encompassing different cities. PCSG uses various clays as the main raw material from the Corumbatai Formation, which is inserted in the Sedimentary Basin of Parana, with more than 1.5 square kilometers. In this context, X-ray diffractograms of samples from different areas of PCSG were used for application of the cluster analysis. Aiming to group the samples in families and subsequently to seek the most representative for the complete analysis. Also, ceramic tests were made by the following methods: the green bulk density after pressing, flexural strength modulus for green. , tests were conducted after firing at 1070 °C and 1120 °C: apparent density after drying, flexural modulus; after firing: apparent density after firing, water absorption linear shrinkage sintering, apparent porosity, modulus of resistance to bending after burning. Further, from the georeferenced sample were created tables for industry in the area, to facilitate the identification of new sample by XRD. Furthermore, the 3D model of the region was developed from the interesting characteristics for ceramic use, using Micromine Mining Software, Enterprise Micromine. (author)