Bauxite is the main ore of aluminum which is composed of several minerals, namely gibbsite, boehmite, and diaspore, along with iron oxide goethite and iron ore. One of the uses of bauxite is as a raw material for refractory bricks in the refractory industry. In the refractory industry, the bauxite feed used as the raw material for refractory bricks has a standard in accordance with SNI 15-0395-…