cobalt blue glass

Cobalt blue glass is a type of glass that has been colored with cobalt oxide, giving it a distinctive rich blue hue. This color results from metal ions that absorb certain wavelengths of light, producing its vibrant shade. Cobalt blue glass has been valued historically for its beauty and durability, often used in decorative objects, bottles, and art pieces. Its striking appearance and chemical stability make it popular for both aesthetic and functional purposes. The cobalt oxide used is safe and stable within the glass, ensuring the color remains vibrant over time.