This work presents the characterization of clays from Cariri region (State of Ceará-Brazil) and the production of composite materials formed by this clays and Cariri Stone (Limestone), aiming the use of rejects produced during the Cariri rock extraction process to the fabrication of red ceramics. Samples with different concentrations of Cariri rock (10%, 15%, 20% and 30%) dispersed in clays have been prepared, ...