Petoskey Stones
Petoskey Stones are fossilized coral rock formations found in the northern regions of Michigan, specifically along the shores of Lake Michigan. These stones are characterized by their distinct hexagonal pattern, created by the remains of ancient coral polyps that lived in the shallow seas of the Great Lakes region over 350 million years ago. The stones are typically gray in color, with the hexagonal pattern standing out in white or light brown. Petoskey Stones are popular among collectors and tourists for their unique appearance and geological significance.