Turritella Agate
Fossil Turritellidae in silica
Markings and exact colorations may vary.
A dark stone packed with spiral snail shells, polished smooth by the surf.
- Typical size
- 1–4 in
- How often it turns up
- Rare on beaches
- Collecting
- Check local rules
- Handling
- Safe to handle
Rules depend on land ownership.
How to tell it apart
- Many small spiral shells embedded in stone
- Hard, glassy, takes a shine
- Brown to near black
Where to find these in Florida
Beaches rated very good or excellent for fossils. Each page shows today’s score, the best window and access details.
- Caspersen Beach · Venice
- Englewood Beach (Chadwick Park) · Englewood
- Stump Pass Beach State Park · Englewood
- Turner Beach · Captiva
- Turtle Beach · Siesta Key
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 fossils in the field guide
Get Florida beachcombing tips
Occasional emails: what's washing up, shelling tips and new BeachNut features. No spam, unsubscribe any time.