opaalilasit

Opaalilasit, often referred to as opal glass or milk glass, is a type of glass characterized by its milky, translucent appearance. This opaqueness is achieved by adding opacifying agents during the glassmaking process. Common opacifiers include bone ash, feldspar, tin oxide, or compounds containing antimony and fluorine. The precise composition determines the degree of translucency and the color, although it is most commonly white.

The history of opaalilasit dates back centuries, with early examples found in Venice. Its popularity surged in the 19th century, particularly in Europe and the United States, where it was widely used for decorative objects, tableware, and lighting fixtures. Manufacturers like Bohemian glassworks and American companies such as Fenton Art Glass and Duncan & Miller produced vast quantities of opaalilasit items.

Opaalilasit's appeal lies in its soft, diffused light transmission, making it ideal for lampshades and globes. It also lends itself well to decorative treatments, including enameling, painting, and cut designs. The material is generally durable and easy to clean, contributing to its widespread use in functional and decorative applications. While often associated with vintage and antique pieces, opaalilasit continues to be produced and appreciated for its unique aesthetic qualities.