An beautiful chunk of a fossil coral geode from Georgia. 

The botryoidal formations are composed of thick translucent amber agate coated in river minerals. These coral pieces are excellent for cabochon jewelry work or for tumbling and polishing to reveal the glassy agate within or to add straight to the curio cabinet. Outside shows the structure of the ancient coral.  Photos taken dry. Excellent addition to a rock, mineral, or fossil collection or for research and education.

Approximate measurements are 3.5" x 3" x 2". 

Georgia fossil coral is approx. 25-45 million years old, is around 7 on the Moh's scale, and is highly prized for jewelry and lapidary work.

I'm out there collecting and cutting these great rocks myself and blogging about it at zookeeperfossils.  eBay sales help support my rockhounding habit.