Хээр жоншны бохирдлыг арилгах үндсэн мэдлэг, арга
01summarize Feldspar is one of the most common minerals in the continental crust. Its main components include SiO2, Al2O3, K2O, Na2O and so on. It contains potassium, sodium, calcium and a small amount of barium and other alkali metals or alkaline earth metals. As strategic non-metallic mineral r...