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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
For over a hundred years afterwards
85 - 66 Million Years old
With a Mohs hardness of 3
Its distinctive purple hue results from trace manganese impurities within the crystal structure
Known for its distinctive green coloration and prismatic crystal habit
3.3" Colonial Rugose Coral Fossil Devonian Age Speed Quarry, Clark County, Indiana Gastropod For over a hundred yearsLocation: 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,