Agatized Coral Fossils


North Florida Fossil Coral

Fossil Agatized Coral is Florida's state stone. The species of coral for the state stone is Montastrea. However, many types of coral species make-up this colorful coral.

They are found in ancient ocean beds, where silica rich groundwater has percolated through them and over time has replaced it's calcium carbonate skeleton with a hard variety of Chalcedony. This leaves the ornamental fossil with a sometimes banded stone look.

It is about 38-25 million years old and from the Oligocene-Miocene period. These fossils are found in a variety of colors- white, gray, brown, black, yellow and red. Different trace minerals in the agate create these colors.

Black Agatized Tampa Bay Coral Fossil

Much of these fossils have been found in the Tampa Bay area, near the Ballast Point. However, more have been found, recently, in North Florida on the Withlacoochee River, in Madison County, Florida.

These excellent prehistoric fossils are sought after by collectors of all types.


Agatized Fossil Corals for Sale

- CLICK on each picture below to learn more.


Agatized Florida Coral Geode Fossil for Sale

        Price: $30        Item #: C019


Florida Agatized Fossil Coral for Sale

        Price: $27        Item #: C018

Drusy Quartz on Agatized Fossil Coral for Sale

        Price: $35        Item #: C017

Black Agatized Fossil Coral for Sale

       Price: SOLD     Item #: C016


Pair of Agatized Fossil Corals for Sale

  Price: out of stock  Item #: C015

Florida Agatized Fossil Coral for Sale

       Price: $30       Item #: C014

Agatized Florida Coral Geode Fossil for Sale

       Price: $25       Item #: C011


Florida Agatized Fossil Coral Geode for Sale

Price: out of stock

Item #:  C013

Agatized Florida Coral Geode Fossil for Sale

Price: out of stock

Item #:  C012

Agatized Florida Coral Fossils for Sale

Price: out of stock

Item #:  C010


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