The gemstone is often cut into faceted stones or polished into smooth cabochons
The Hexagonaria percarinata consists of tightly packed
The findings indicate that Strombus bubonius inhabited the Mediterranean basin at the close of the Mindel-Riss interglacial (Oxygen Isotope Stage 7) and during each high sea-level phase of the Riss-Würm interglacial (Oxygen Isotope Stage 5)
Its presence indicates warmer water conditions than those that exist in the region today
rex by tooth count and cranial structure: Nanotyrannus has 14–15 teeth per side in the maxilla and 16 per side in the lower jaw
4.2" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Toe The gemstone is often cutLocation: Michigan, United States Weight: 2. 4 Ounces Dimensions: 4. 2 Inches Long, 1. 7 Inches Wide, 0. 3 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old Petoskey Stones are unique rocks and fossils, specifically fossilized rugose coral known as Hexagonaria percarinata. Typically pebble shaped, these stones are found primarily in the northwestern and northeastern regions of Michigan's Lower Peninsula.