In the field of extractive metallurgy, mineral processing, also known as ore dressing, is the process of separating commercially valuable minerals from their ores. Mineral processing, art of treating crude ores and mineral products in order to separate the valuable minerals from the waste rock, or gangue. It is the first process that most ores undergo after mining in order to provide a more concentrated material for the procedures of extractive metallurgy. Mineral Processing and Extractive Metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into a purer form. The subjects you may touch on include Mineral Processing, Hydrometallurgy, Pyrometallurgy, and Engineering Mathematics among many courses.