Many of the sea walls are made of coquina rock, I love the natural beauty and the feel of these rocks.

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Coquina (“co-KEEN-a”) rock is the Spanish word for cockleshells or shellfish.

Coquina rock is the product of sedimentary formations that underlie much of Florida’s Atlantic shore.
It was formed over 100,000 years ago, during the Pleistocene Epoch, glaciers repeatedly formed and melted, causing the sea level to fall and rise each time in response. When the sea level was high, shells, sand, and clay accumulated as offshore bars. When the sea level dropped, these bars emerged as offshore islands. As rainwater swept through these exposed deposits, it leached the calcium carbonate from the shells. This calcium carbonate cemented the shell, sand, and clay together to form Coquina rock.

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