Black Sea Glass
Very dark olive or amber glass
Markings and exact colorations may vary.
Glass so dark it looks black until you hold it to the sun, usually from 18th and 19th century bottles.
- Typical size
- 0.5–2 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
- Opaque black in hand, deep olive or amber against light
- Thick and heavy
- Often irregular, hand-blown shapes
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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