In the middle of the eighteenth century, in the mining area of Mato Grosso, the licensed attorney José Barbosa de Sá affirmed that gold ore was not the most important to the colonial economy. His work Dialogos Geograficos (1769) is one of the largest cosmologies ever written in Portuguese America. With regard to the descriptions and mineralogical reports conceived by this man from the colony, we intend analyze the natural philosophical, technical and technological precepts who guided theories and criteria employed in colonial mining, as well as the literate colonial activity forefront the study and exploration of the natural world of America. We also analyze the extent to the work can contribute to the discussion of colonial intellectual production about an activity that involved not only the exploration and mining of precious metals.
Portuguese America; mineralogy; history of science