Color: yellow, brown, gray and black. The cleavage surface often shows pearls or submetallic luster. Phlogopite has higher insulation and resistance, lower electrolyte cost, arc and corona resistance and any other dielectric prosperities .As per the Physicochemical properties, perfect toughness, high mechanical strength, thermostability and acid&alkali-resistance. At present,It is widely used in radio industry, aircraft industry, production of electrical machinery, coating, painting, plastic,linoleum,paper making,drilling oil etc. Typical application: Phlogopite flake can be used for production of electrical machinery, insulant of electric furnace, Chaozao mica paper, mica sheet and fire-resistant mica tape. The expansion mica used for building.Producing insulated brick for kiln. In addition, it used for the material of drilling oil, the filler of plastic and the pad of rockets missile .