mineral

Polished brown stone or bead

Unidentified; possibly polished jasper, agate, or iron-rich quartzite

AI-generated identification · may be incorrect

Small, rounded, highly polished brown specimen with opaque appearance and subdued vitreous luster. Hardness cannot be determined visually; likely about Mohs 6–7 if quartz-rich, with no visible cleavage or crystal structure.

Identified August 17, 2026More mineral →

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Physical properties

Formation & geological history

Could be a naturally formed siliceous pebble that was tumbled or cut and polished; geological age and exact formation are indeterminate from the image.

Uses & applications

Potentially used as a worry stone, decorative cabochon, bead, or lapidary specimen; it has no specific industrial use without confirmed identification.

Geological facts

Uniform brown color may result from iron oxides, while the smooth circular shape strongly suggests human polishing rather than an exposed natural crystal face.

Field identification & locations

Field identification requires hardness, streak, specific gravity, and close inspection for banding or grain; quartz-rich material should not scratch with a steel knife. Common analogous stones occur in river gravels and lapidary markets worldwide.