china - clay is a old name is kaolin main component of porcelain ,whiteware, tiles and ceramic glazes.used as a filler and coating agent to improved brightness, smoothness,and printability of paper.used as an extender pigment in water based and solvent based paints modifying gloss levels non black filler in natural and synthetic rubber for reinforcing properties and a filler in various plastics used in cosmetic products like in talcum powder cream powder.primary fluxing agent in medium and high temperature ceramic bodies and glazes.used in glass making to provide alumina and alkali, enhancing

Feldspar is the single most abundant mineral group on earth making up about 60% of the earth's crust.in mining ,it is highly valued for its use as a fluxing agent in industrial applications.Economically viable deposits are primarily found in large crystalline rocks like pegmatites (vein-like bodies with very large crystals)and high-quality granite bodies. it is typically extracted using open-pitmining(quarrying)methods followed by crushing grinding and various beneficiation (purification) processes.