FULLN CHEMICAL Ceramic glaze pigment Zinc chrome ferro aluminum brown is an inorganic pigment synthesized by calcining at high temperature. In the process of high-temperature calcination, Zn2+, Fe2+, Fe3+, Cr3+ and Al3+ are diffused in different proportions. The high temperature form spinel crystal structure. Its composition may include mineralizing agent boric acid, SiO2 and other substances. It is suitable in oxidizing atmosphere firing and suitable for various of glazes.