Cumberlandite
Rhode Island State Rock
State Rock
Adopted on May 26, 1966 - The State Rock is Cumberlandite. It is a heavy black or dark brown rock with white markings. It is found South of the Town of Cumberland on both sides of Narragansett Bay. It will attract a magnet, and is estimated to be between 1 and 1.5 billion years old.
The Worlds Greatest Rock
Rhode Island designated cumberlandite as the official state rock in 1966; a very rare variety of igneous rock. Cumberlandite is magnetic and is estimated to be between 1 and 1.5 billion years old.
A heavy black or dark brown rock with white markings, cumberlandite is found South of the town of Cumberland on both sides of Narragansett Bay in Rhode Island.
Rhode Island
Created By:
Noah Blanchard and, Abrahim Ismaeil