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Extração de filito
MINERAL EXPLOTATION
The extraction of Extrafilito's ores and aggregates takes place in its open pits, through the bench process. The ores are excavated by machines and loaded onto off-road trucks and transported to the drying yard. After this first process, the beneficiation is carried out, through sieving, grinding and washing (sand). Once manufactured, the ores are prepared for transport and proceed to the logistical delivery chain.
Pesquisa mineral
Mineral research comprises the execution of the works necessary for the definition of the deposit, its evaluation and the determination of the feasibility of its economic use.
Field and laboratory work are carried out, such as: geological surveys of the area; studies of outcrops and their correlations; geophysical and geochemical surveys; openings of excavations that can be visited and carrying out soundings in the mineral body; systematic sampling; physical chemical analysis of samples and drill cores; and beneficiation test of ores or useful mineral substances, to obtain concentrates according to market specifications or industrial use.
