1.used in building materials,fire extinguisher,plastic,electric industry etc. 2.all types of meshes 3.mica powder,flakes,broke Mica is a kind of rock-forming mineral,which is always presents as pseudohexagonal and rhombic platy, pieces and columnar crystal. With the changing of the chemical composition, the mica color is different. Especialy whith the increacing of the Fe, the color is darker. ...