mineral
Sea Glass
Amorphous silicon dioxide (man-made glass weathered by nature)
Hardness of 5.5 on the Mohs scale, frosted or weathered surface texture, rounded edges, translucent to opaque green color, vitreous luster when wet
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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
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