Rare Teardrop Shaped Chain Coral Pendant. This particular piece has very unique patterns, with an unusually beautiful stripe through the bottom section. Chain coral is 425 million year old extinct fossilized coral. It is hard to find. Greg only finds 1-2 chain coral rocks per year! It has a very unique design to it, with no two being the same. They have more of a waxy looking finish, giving the feel of antiquity, and that is why Greg mounts antique brass looking bails to them. Each bail is securely attached to the stone using very strong E6000 glue.