Mica’s Mohs hardness is 2-3.5, mica powder mill production line can be used in building materials, fire, fire extinguishing agent, welding electrodes, plastic, electrical insulation, paper, asphalt paper, rubber, pearlescent pigments and other chemical industry. Mica can be divided into muscovite, biotite and lithium mica three categories. With the improvement and upgrading of technology, the […]