mineral

Sea Glass

Amorphous silicon dioxide (man-made glass weathered by nature)

AI-generated identification · may be incorrect

Hardness of 5.5 on the Mohs scale, frosted or weathered surface texture, rounded edges, translucent to opaque green color, vitreous luster when wet

Identified August 1, 2026More mineral →

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Physical properties

Hardness of 5.5 on the Mohs scale, frosted or weathered surface texture, rounded edges, translucent to opaque green color, vitreous luster when wet

Formation & geological history

Formed from discarded man-made glass products (bottles, jars, windows) that have undergone natural tumbling, wave action, and chemical weathering in oceans or large lakes over decades

Uses & applications

Collected by hobbyists, used in coastal decor, jewelry making, and art projects

Geological facts

Genuine sea glass takes between 20 to 40 years (and sometimes up to 100 years) of constant tumbling in the ocean to acquire its signature frosted appearance and smooth edges

Field identification & locations

Found along the shores of oceans, bays, and large lakes, particularly near historical shipping lanes or old dump sites; identified by its frosted texture and completely smoothed, non-sharp contours