6ari ((PETOSKEY STONE)) Michigan, 13 x 13 x 6.5 cm, Large Cabinet, | |
Huge example of this fossilized colonial coral, Hexagonaria Percarinata, Devonian, 350 million years old. This one is as it was found and needs to be polished to bring out the beauty of these fossils (SEE EXAMPLES FROM WWW.MINDAT.ORG COPYWRITE 2002 JOHN H BETTS OF POLISHED SPECIMENS) ex Clyde Hardin specimen. |