... high-grade paint, coating, ink, rubber, plastics, wire ,cable and so on. Mica Powder Fineness of Mica powder :800 mesh ,1500mesh ,3000 mesh ... .Mica mostly crystallize into monoclinic system ,crystal appear as fake hexagonal sheet, flake, clintheriform,sometimes ... %Iron oxide (Fe2O3)0.06%Water content (H2O)0.25% High quality Mica Powder