3.2" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Pine Cone Phantom or Ghost Quartz develops

Phantom or Ghost Quartz develops when chlorite layers are deposited during the early formation of a clear quartz crystal

is a hydrated cobalt arsenate mineral that commonly manifests as crusts

From that point onward

The country's mining history dates back centuries

3.2" Polished Slab Petoskey Stone Hexagonaria Coral Fossil Devonian Age Michigan Pine Cone Phantom or Ghost Quartz developsLocation: Michigan, United States Weight: 1. 6 Ounces Dimensions: 3. 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 the fossilized rugose coral Hexagonaria percarinata. Typically pebble shaped, these stones are found primarily in the northwestern and northeastern regions of Michigan's Lower Peninsula. They