Explanation
In addition to metal minerals, mineral fuels and gems, no-metallic mineral whose chemical composition or physical properties can be used in industry and have economic value. According to the end use, it can be divided into industrial mineral raw materials or raw mineral material (such as quartze, potassium feldspar, diopside, gypsum, etc.) and industrial mineral materials (such as graphite, muscovilte, iceland spar, etc.). It is similar to the meaning of "mineral materials" in the field of materials.
Classification
Natural materials and products -> Mineral materials