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

Sea Glass

Man-made silicate glass

AI-generated identification · may be incorrect

Hardness 5.5 to 7 on the Mohs scale, frosted or weathered surface texture, various translucent colors, amorphous crystal structure.

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Physical properties

Hardness 5.5 to 7 on the Mohs scale, frosted or weathered surface texture, various translucent colors, amorphous crystal structure.

Formation & geological history

Formed by the mechanical and chemical weathering of discarded anthropogenic glass in marine or freshwater environments over decades.

Uses & applications

Used primarily in coastal jewelry craft, decorative mosaics, and collected by beachcombers worldwide.

Geological facts

Genuine sea glass requires 20 to 40 years of tumbling by waves and sand to achieve its characteristic frosted patina.

Field identification & locations

Found along ocean beaches and lake shores; collectors look for smooth, evenly frosted surfaces and rare colors like red or orange.