Colemans Quarry, grid reference ST726452 is a limestone quarry at Holwell, near Nunney on the Mendip Hills, Somerset, England. The Colemans Quarry complex comprises four pits separated by three roads (including the A361) It came to fame in 1858 when a geologist named Moore purchased three tons of fissure filling, and then spent 3 years sifting and sorting and separated more than one million fossils including 27 small mammal teeth. Minerals found at the site include Calcite, Goethite, Purple Fluorite, Baryte, Galena, Rhodochrosite and Manganese minerals.