opalit

Opalit, often marketed simply as opalite, is a synthetic opalescent material used as a substitute for natural opal in jewelry. It is not a natural mineral but a manufactured glass or resin product with an iridescent, milky appearance designed to resemble opal.

Production and composition: The term covers several materials produced to imitate opal, most commonly glass or polymer resins that have been colored and finished to create an opalescent effect. Unlike natural opal, opalit lacks a hydrated silica composition and crystalline structure, and it does not exhibit true play-of-color under light.

Appearance: Opalit typically appears pale blue, milky white, or amber and can show a soft glow or iridescence when light passes through. The effect is caused by internal scattering or layered coloration rather than diffraction from uniform silica spheres.

Uses and market: Opalit is widely used in beads, cabochons, and inexpensive jewelry. It offers a lower-cost alternative to natural opal and other opal simulants. The term is a trade name, and properties can vary by producer.

Care: Clean with mild soap and water; avoid harsh cleaners and ultrasonic cleaners; store separately to prevent scratching; protect from strong heat or solvents that could damage resin.

See also: Opal; Opalescence; Opalite.