Cerium Oxide Polishing Powder 1.For polishing the flat glass, crystal glass, and natural crystal. 2.Main material: rare earch Cerium ... ( has been extended to optical glass, optical lens, tube grinding,bleaching, clear, glass UV absorption lines and the role of electronics). 2 ... made of titanium yellow to pale yellow glass. 3. Used in ceramic glazes and electronics industry, as agents penetrate the ...