5.9" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Koskinonodon This powerhouse mineral dominates the

This powerhouse mineral dominates the Earth’s surface as the backbone of limestone and marble

Halite comes in a range of colors due to impurities

Its extraterrestrial origin and optical properties make it a prized specimen for mineralogical collections and scientific study

Own a specimen that holds tangible evidence of these colossal birds' feeding strategies and their place in Madagascar's ancient ecosystem—a direct connection to understanding how nature's largest avians thrived millions of years ago

As these impacts intensified

5.9" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Koskinonodon This powerhouse mineral dominates theLocation: Michigan, United States Weight: 6. 2 Ounces Dimensions: 5. 9 Inches Long, 2. 2 Inches Wide, 1. 1 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old Petoskey Stone is a unique rock and fossil, specifically a fossilized rugose coral known as Hexagonaria percarinata. These stones are typically pebble shaped and are found primarily in the northwestern and northeastern regions of Michigan's Lower