The color varies with the change of chemical composition, mainly with the increase of Fe content. Mica is characterized by its insulation, high temperature resistance, gloss, stability in physical and chemical properties, good heat insulation, elasticity and toughness.
Mica is a rock forming mineral, usually in the form of six - or rhombic plates, sheets, and columns.
The Muscovite is the most used in industry, and the second is gold mica. It is widely used in building material industry, fire fighting industry, fire extinguishing agent, electric welding rod, plastic, electric insulation, paper making, asphalt paper, rubber, pearlescent pigment and other chemical industry.
