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1. A sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals

Derived forms: limestones

Type of: rock, sedimentary rock, stone

Encyclopedia: Limestone, Maine Limestone, Michigan Limestone, NY Limestone, MI Limestone Limestone, Kentucky Limestone, ME Limestone, Tennessee Limestone, WV Limestone, West Virginia Limestone, Oklahoma Limestone, New Brunswick Limestone, New York Limestone, OK