This is a specimen of fossil coral Lithostrotionella found in Pocahontas and Greenbrier counties of SE West Virginia. About 340 million years ago the WV mountains were a shallow sea and reef. Slowly the coral got buried by calcium rich debris which turned into limestone. The coral was then replaced by dissolved silicon dioxide (quartz) and was agatized. As the heads weathered out of the limestone the tough agate withstood further weathering so they can be found in the soil of fields and streams in the area to this day. This particular specimen was found in a field near Williamsburg, WV. It weighs 5 lb-4 oz and measures 3 x 6 x 7.5 inches. The coral polyps are visible along with some cross section structural exposure. There is also a rare and exceptional feature on the bottom of the specimen. 80% of the surface is covered with milky chalcedony crystals averaging 1 to 2 mm.