What Makes Glass Colored? The Chemistry and Techniques of Colored Glass
Glass gets its color from natural impurities and added minerals or purified metal salts, called pigments. Ruby glass, made in 1679 with gold chloride, is a famous example. Uranium glass, created in the 1830s with uranium oxide, can glow in the dark. These elements give glass its vibrant colors. Techniques such as adding colored elements … Read more