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Utah State Rock

Anthracite coal; photo courtesy of Mineral Information Institute: Coal.

Official State Rock of Utah

Utah designated coal as the official state rock in 1991. Coal is an organic sedimentary rock used as fuel; found in 17 of Utah's 29 counties.  All State Rocks

Coal is a fossil fuel, composed largely of carbon, formed from the remains of plants that lived approximately 100 to 400 million years ago. All State Fossils