The Mineral Industries of Benin, Burkina Faso, and Sao Tome e .
Benin, Burkina faso, and sao tome e principe2011. 4.1. THE MINERAL INDUSTRIES OF BENIN, . included cement, clay, limestone, marble, and sand and gravel. Gold was also produced in small quantities by . mining equipment, $108,000 of chemical fertilizers, $20,000 of iron and steel products, and $34,000 of copper.get price