mineral

Green sea glass (likely bottle glass)

Man-made soda–lime silicate glass; not a natural mineral

AI-generated identification · may be incorrect

Translucent pale green, vitreous luster, conchoidal fracture, amorphous structure, and Mohs hardness about 5–5.5. Rounded, frosted edges indicate prolonged abrasion in water or sediment.

Identified August 16, 2026More mineral →

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Physical properties

Translucent pale green, vitreous luster, conchoidal fracture, amorphous structure, and Mohs hardness about 5–5.5. Rounded, frosted edges indicate prolonged abrasion in water or sediment.

Formation & geological history

Formed by melting silica sand, soda, and limestone during glass manufacture, then naturally tumbled and chemically frosted; it is not geologically aged rock. The piece may originate from an old bottle or window glass.

Uses & applications

Used mainly for jewelry, crafts, mosaics, and collecting; it has no structural construction value. Genuine beach-found pieces are popular decorative materials.

Geological facts

The green color commonly comes from iron impurities, sometimes enhanced by chromium. Natural sea glass develops a matte, satiny surface and uniformly rounded edges rather than the sharp fractures of freshly broken glass.

Field identification & locations

Identify it by its translucent green color, lightweight feel, glassy conchoidal fracture, and frosted pitted surface; a UV test may help distinguish some antique glass types. Commonly found on beaches near historic ports, dumps, and settlements.