The study comprises the trajectory of the regional production both of the iron ore as well as Brazil nut, extractives products of the Brazilian Oriental Amazonia. It indicates that the mining activities became a important economic activities, once the Brazil nut had lost its economic expression. The study argument that such differentiated trajectories have linked concerning the fact that the Brazil nut extraction being not susceptible to the technological changes different of the mineral resource stagnation which involves a great number of opportunities of technological changes and intensive capital.