mineral

Tumbled opalite (likely man-made glass)

Opalite glass; a synthetic opalescent glass, not a natural mineral species

AI-generated identification · may be incorrect

Smooth, rounded, translucent milky blue with a yellowish glow near the edge. Glassy luster; hardness typically about 5–6 Mohs; no natural crystal structure or cleavage. The photo alone cannot confirm its composition.

Identified September 27, 2026More mineral →

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Physical properties

Formation & geological history

Commercial opalite is manufactured glass, so it has no geological age or natural formation process. Natural opal is hydrated silica (SiO₂·nH₂O), but this piece’s uniform, cloudy appearance is typical of imitation opalite.

Uses & applications

Often sold as an inexpensive decorative or jewelry stone and used in beads, pendants, and carvings.

Geological facts

“Opalite” is a trade name that can refer to synthetic glass or, less commonly, natural opal; the name does not establish that a piece is genuine opal.

Field identification & locations

Its rounded polish and even blue-to-yellow translucence suggest a manufactured tumbled piece rather than a raw specimen. The reported location in Sergipe, Brazil, does not meaningfully support identification as natural opal; a hardness or laboratory test would be needed to verify material.