To produce zircon pigment by using intermediate product
obtained from decomposed zircon with NaOH, intermediate
products were mixed with excess SiO2 (Merck) together with
NH4VO3 (Aldrich) for blue, FeSO47H2O (Merck) for pink and Pr6O11 (Org.Panc.) for yellow colour. NaF (Merck) and NaCl
(Merck) mixture was used as a mineralizer in all the pigment
compositions.