Tungstate refers to a chemical compound that contains the tungstate ion, WO4^2-, where tungsten is in its highest oxidation state. These compounds are often formed by the reaction of tungsten with oxygen and are typically found in minerals such as scheelite and wolframite. Tungstates are used in various applications, including catalysts, pigments, and in the production of certain types of glass. In addition to their industrial uses, tungstates have significance in the field of materials science and chemistry. They can exhibit interesting properties, such as luminescence and superconductivity, making them valuable for research and technological advancements.