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Mica has very high insulation, thermal insulation performance, good chemical stability, with strong acid, alkali and pressure resistance, so it is an important raw material for the manufacture of electrical equipment, so it can also be used as the insulation material in the hair dryer. Mica also has the ability of birefringence, so it is also an optical instrument material for the manufacture of polarizers. In industry, the most used is white mica, followed by gold mica, widely used in building materials industry, fire industry, fire extinguisher, electrode, plastic, electrical insulation, papermaking, asphalt paper, rubber, pearlite pigment and other chemical industry.
