sedimentary
Sea Glass
Man-made silicate glass weathering product
Hardness of 5.5 to 6 on the Mohs scale, typically frosted or weathered surface texture, smooth and rounded edges due to wave action, vitreous to dull luster depending on degree of weathering.
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Physical properties
Hardness of 5.5 to 6 on the Mohs scale, typically frosted or weathered surface texture, smooth and rounded edges due to wave action, vitreous to dull luster depending on degree of weathering.
Formation & geological history
Formed from discarded or broken anthropogenic glass objects (bottles, tableware, etc.) that have been tumbled, abraded, and weathered over decades in marine or freshwater environments.
Uses & applications
Commonly collected as a hobby, used in jewelry making, mosaics, and decorative art.
Geological facts
Genuine sea glass can take anywhere from 20 to over 40 years of constant tumbling in the ocean to achieve its characteristic frosted appearance and smooth edges.
Field identification & locations
Found along the shores of oceans, large lakes, and rivers worldwide. Easily identified by its smooth, frosted surface and lack of sharp edges.
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