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

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, 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, various translucent colors, amorphous crystal structure.

Formation & geological history

Formed by natural mechanical weathering and tumbling of discarded glass fragments in marine environments over decades.

Uses & applications

Collected by hobbyists for crafting, jewelry making, and home decor.

Geological facts

Sea glass requires 20 to 40 years of tumbling in ocean waves to achieve its characteristic frosted appearance and smoothed edges.

Field identification & locations

Found along ocean beaches and lake shores globally, identified by its smooth, frosted texture and lack of sharp edges.