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Do nonmetallic minerals belong to building materials?
Non-metallic minerals, as the name implies, are not metallic minerals. According to estimates, China's total reserves are equivalent to 6543.8+493 million tons of sulfur, ranking second in the world. The main varieties are diamond, graphite, natural sulfur, pyrite, crystal, corundum, salt ore, potassium salt, magnesium salt, iodine, bromine, arsenic and boron ore.

Therefore, nonmetallic minerals do not belong to building materials.