Processing mined material

摘要

A method of processing mined material, such as mined ore, includes a step of exposing mined material to an alternating magnetic field and directly or indirectly assessing the electrical conductivity of mined material in the alternating magnetic field in order to determine whether there is valuable material in the mined material. An apparatus for processing mined material, such as mined ore, includes a magnetic field station that is adapted to expose mined material to an alternating magnetic field that induces currents in mined material that are related to the electrical conductivity of valuable material in the mined material.