mineral
Green sea glass (likely slag glass or bottle glass)
Man-made soda-lime silicate glass; not a naturally occurring mineral
AI-generated identification · may be incorrectOpaque to translucent emerald green, smooth frosted surface, vitreous luster, conchoidal fracture, and no crystal structure; hardness about 5–6 Mohs. The rounded edges and matte weathering indicate abrasion and chemical etching in water or beach sediment.
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Physical properties
Opaque to translucent emerald green, smooth frosted surface, vitreous luster, conchoidal fracture, and no crystal structure; hardness about 5–6 Mohs. The rounded edges and matte weathering indicate abrasion and chemical etching in water or beach sediment.
Formation & geological history
Likely discarded green bottle glass naturally tumbled and frosted over years to decades; it may alternatively be industrial glass slag. It is human-processed geological-like material rather than a natural rock.
Uses & applications
Used for crafts, jewelry, mosaics, and decorative collectibles; genuine beach sea glass can have modest value. It has no significant construction use in this form.
Geological facts
Common green sea glass often comes from beverage, wine, or pharmaceutical bottles. Color, uniformity, and surface texture can help distinguish it from jade, aventurine, or naturally formed minerals.
Field identification & locations
Identify by bubble patterns, conchoidal fracture, perfectly smooth rounded edges, and a frosted “sugary” surface; natural glass usually shows flow textures or vesicles. Common on beaches near historic settlements and dumping sites.
