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 to 7 on the Mohs scale, typically green or brown in color, vitreous to frosted luster, amorphous crystal structure with conchoidal fracture.

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Physical properties

Hardness of 5.5 to 7 on the Mohs scale, typically green or brown in color, vitreous to frosted luster, amorphous crystal structure with conchoidal fracture.

Formation & geological history

Formed from discarded anthropogenic glass objects weathered and tumbled by wave action over decades in marine or freshwater environments.

Uses & applications

Collected by hobbyists for use in jewelry making, mosaic art, and home decor.

Geological facts

Sea glass requires 20 to 40 years of tumbling in the ocean to acquire its characteristic frosted patina and smooth edges.

Field identification & locations

Easily identified by its frosted, weathered surface texture and smooth, rounded edges found along coastlines and lake shores worldwide.