Rock Identifier
Sea Glass (Amorphous Silicon Dioxide (SiO2)) — Mineral/Man-made
Mineral/Man-made

Sea Glass

Amorphous Silicon Dioxide (SiO2)

AI-generated identification · may be incorrect

Hardness of 5.5-7 on Mohs scale. Translucent, frosted appearance with a smooth, weathered surface. Lacks cleavage.

Identified More mineral/man-made
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Physical properties

Hardness of 5.5-7 on Mohs scale. Translucent, frosted appearance with a smooth, weathered surface. Lacks cleavage.

Formation & geological history

Formed from discarded manufactured glass that has been tumbled and weathered by ocean waves and sand over decades.

Uses & applications

Used extensively in jewelry, crafts, and collected for its aesthetic appeal.

Geological facts

True sea glass takes 20 to 40 years, and sometimes up to 100 years, to acquire its characteristic texture and shape.

Field identification & locations

Identified by its frosted, pitted surface and rounded edges. Commonly found on beaches worldwide, especially near populated areas or historical dump sites.