Coquina Rock
Cemented shell limestone
Rock made entirely of cemented shell fragments, the stone Florida's oldest forts were cut from.
- Typical size
- Any size
- How often it turns up
- Common near outcrops
- Collecting
- Check local rules
- Handling
- Safe to handle
Loose beach pieces are usually fine. Do not break stone from outcrops — most are inside parks or protected shoreline.
How to tell it apart
- Visible whole and broken shells cemented together
- Light, porous, crumbly at the edges
- Cream to grey
Found one?
Photograph it and BeachNut will rank the likely matches, then log it to your collection.
Identify a find
