Used as a pigment in paints, inks, and plastics due to its excellent thermal stability and lightfastness. It provides a green to bluish-green color and is valued in applications requiring resistance to high temperatures and UV exposure. Also employed in ceramic glazes and glass manufacturing for coloration. Its low solubility and chemical inertness make it suitable for corrosion-resistant coatings and in some environmental applications where metal leaching must be minimized.