Sea Glass Marble
Tumbled glass marble
Markings and exact colorations may vary.
A frosted glass marble worn round by the surf, often from ship ballast, old bottle stoppers or lost toys.
- Typical size
- 0.4–1 in
- How often it turns up
- Rare
- Collecting
- Usually legal to collect
- Handling
- Safe to handle
Sea glass is discarded material and is free to collect on public beaches. Leave modern broken glass for a bin, not a pocket.
How to tell it apart
- Spherical, fully frosted
- Colour swirl often still visible inside
- Any size from 0.4 to 1 inch
Found one?
Photograph it and BeachNut ranks the likely matches with a confidence read, then logs it to your collection with the beach and date.
Browsing beaches and the full field guide is free. A free account logs unlimited finds and gives you three photo identifications a day.
More sea glass in the field guide
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