Used as a green pigment in paints, inks, plastics, and glasses due to its stable color and resistance to heat and light. Commonly applied in industrial coatings where durability is required. Also used in the production of refractory materials and ceramics because of its high melting point and chemical stability. Serves as a polishing compound for metals and optical surfaces, especially in the form of rouge powder. Employed in some catalysts for chemical reactions and in the synthesis of other chromium compounds.