Explanation
Coordination type natural non-metallic minerals. Component C. It often contains impurities such as Si, Al, CX Mg, Mn, Ti, O, N, etc. Except nitrogen, magnetite, ilmenite, magnesium and aluminum are used as raw materials? f. Chlorite, biotite, graphite and other inclusions exist.
Classification
Inorganic non-metallic materials -> Carbon materials
Natural materials and products -> Mineral materials