A zirconate is an oxyanion containing zirconium. Examples include Na<sub>2</sub>ZrO<sub>3</sub>, CaZrO<sub>3</sub> and Cs<sub>2</sub>ZrO<sub>3</sub> which can be prepared by fusing zirconium dioxide with Na<sub>2</sub>O, CaO and CsOH respectively.