Subsoil resources
Santa Catarina is responsible for 63% of the Brazilian gross charcoal production – 7.8 million tons – and for 43% of the national production of treated coal – 2.5 million tons. Among the other mineral resources is the second largest reserve of quartz in Brazil and large occurrences of ceramic clay, bauxite and semi-precious stones. Santa Catarina also has one of the largest reserves of potable underground water in the world, the so-called Botucatu reserve.