sedimentary
Sea Glass
Man-made vitreous material (silica glass)
AI-generated identification · may be incorrectHardness of 5.5 to 7 on the Mohs scale; typically smooth, frosted texture with curved conchoidal fracture patterns; vitreous to dull luster.
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Physical properties
Hardness of 5.5 to 7 on the Mohs scale; typically smooth, frosted texture with curved conchoidal fracture patterns; vitreous to dull luster.
Formation & geological history
Formed from discarded manufactured glass tumbled by ocean waves, sand, and currents over decades.
Uses & applications
Used primarily in coastal arts, crafts, and jewelry making.
Geological facts
Genuine sea glass requires 20 to 40 years of marine tumbling to achieve its characteristic frosted patina.
Field identification & locations
Found globally along ocean beaches and lake shores; identified by frosted, weathered surfaces and rounded edges.
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