3.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Gastropod Reaching lengths of around 9

Reaching lengths of around 9 meters and weighing up to 7 metric tons

Its distinctive purple hue results from trace manganese impurities within the crystal structure

a vast inland sea that once stretched across central North America during the Cretaceous

With a Mohs hardness of 3

85 - 66 Million Years old

3.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Gastropod Reaching lengths of around 9Location: Speed Quarry, Clark County, Indiana Weight: 2. 6 Ounces Dimensions: 3. 3 Inches Long, 2. 1 Inches Wide, 1. 7 Inches Thick Middle Devonian Age 380 Million Years Old The item pictured is the one you will receive. Colonial Rugose Fossil Coral (Prismatophyllum Prisma) Dare to own a relic from one of nature's boldest experiments in reef formation. During the Devonian period410 million years agocorals entered the oceans with remarkable force,