Nov 01, 2014 Steps in Obtaining Mineral Commodities 1) Prospecting finding places where non-metallic minerals occur. 2) Mine exploration and development learn whether non-metallic minerals can be extracted economically. 3) Mining extract non-metallic minerals from ground. 4) Beneficiation separate non-metallic minerals from other mined rock. The following paper deals with the problems that have arisen in the application of the flotation process to the beneficiation of non-metallic ores by flotation. The most important of these ores are listed and the commercial specifications of the desired products are given. The problems caused by the complexity of many of the raw ore Read more Sep 15, 2021 9.3 Gravity beneficiation Barite ore is often closely associated with other metallic and non-metallic ores in the process of mineralization. According to the different densities between barite and other minerals, gravity beneficiation can be used to purify barite.