pearlescent pigment mica powder
  Pearlescent Pigment is formed with tiny mica flake as basal body, on which it is coated with metal oxide, such as TiO2, Fe2O3 , etc. The thickness of the coated layer is controlled strictly. Because of lower refractive index of mica flake and higher refractive index of TiO2,it will form pearlescent luster affected by light interference when the light irradiates upon the surface of pearlescent pigment
  By using different metal oxides and adjusting the thickness of coated layer, five series of pearlescent pigments with various color phases can be got.