Mica powder widely use in high-grade paint, coating, ink, rubber, plastics, wire ,cable and so ... into monoclinic system ,crystal appear as fake hexagonal sheet, flake, clintheriform,sometimes as fake hexagonal prism.hardness 2-3 ,specific gravity 2 ... %Iron oxide (Fe2O3)0.06%Water content (H2O)0.25% High quality Mica Powder