NATURAL DIOPSIDE FOR CERAMICS IN BRAZIL AND A GEOLOGICAL APPROACH TO THE STATE OF BAHIA OCCURRENCES
Eduardo Camargo Meneghel Camargo Meneghel, Eduardo , V.M. Aguilella , S. Estupiñá , Ubiraci dos Reis Freitas Ubiraci dos Reis Freitas , C. Ribalta , Guillermo Rafael Beltran Navarro Beltran Navarro, Guillermo Rafael , William Paddock , José Francisco Marciano Motta, José Francisco Marciano Motta, Antenor Zanardo,