Abby and Clayton Panteah’s Petoskey stone Mountain-lion (puma, panther, leopard or cougar) deciphers information through turquoise inlaid eyes. Formed from once living six-sided marine corallites, Petoskey stone is a fascinating fossilized grouping of their exoskeleton structures. Mountain lions are ecosystem managers who foster biodiversity. As apex predators they keep ungulates alert and moving, preventing overgrazing and erosion of water sources. About 2 5/8″ long, 3/4″ wide and 7/8″ tall.