Rock Identifier
Sea Glass (Man-made silicate glass) — mineral
mineral

Sea Glass

Man-made silicate glass

AI-generated identification · may be incorrect

Hardness of 5.5 on the Mohs scale, frosted or matte surface texture, rounded edges, amorphous crystal structure.

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Physical properties

Hardness of 5.5 on the Mohs scale, frosted or matte surface texture, rounded edges, amorphous crystal structure.

Formation & geological history

Formed from discarded glass objects tumbled and weathered by wave action, sand, and ocean currents over decades.

Uses & applications

Used primarily in jewelry making, mosaic arts, decorative crafts, and by beachcombing collectors.

Geological facts

Genuine sea glass can take anywhere from 20 to 40 years of constant ocean tumbling to achieve its signature smooth, frosted appearance.

Field identification & locations

Found along ocean beaches, large lakes, and riverbanks worldwide. Identified by its characteristic C-shaped pit marks and frosted texture.