Used as a pigment in ceramics and glass due to its bright white color and stability at high temperatures. It serves in radiation shielding applications because of its high density and ability to absorb X-rays and gamma rays. Also employed in the production of phosphors for fluorescent lamps and display devices. Its luminescent properties make it suitable for use in scintillation counters for detecting ionizing radiation. Additionally, it acts as a corrosion inhibitor in coatings and is used in some electronic ceramics for its dielectric properties.