Bauxite is a sedimentary rock mineral that is the main source of aluminum. It's made up of impure aluminum hydroxides, silica, iron, and other impurities. Bauxite is formed when aluminum-rich rocks weather in tropical and subtropical regions.
There are four basic grades of bauxite- Chemical grade- (55-58% min. pure), Abrasive grade- (55% min. pure), Refractory grade- (59-61% min. pure) and Metallurgical grade- (50-55% min.
Bauxite is a sedimentary rock mineral that is the main source of aluminum. It's made up of impure aluminum hydroxides, silica, iron, and other impurities. Bauxite is formed when aluminum-rich rocks weather in tropical and subtropical regions.
There are four basic grades of bauxite- Chemical grade- (55-58% min. pure), Abrasive grade- (55% min. pure), Refractory grade- (59-61% min. pure) and Metallurgical grade- (50-55% min.
