Grindstones have been quarried in Wood and Jackson counties.
The department produces lime, grindstones and brick-clay.
From the Ohio sandstone known as Berea grit a very large portion of the country's grindstones and pulpstones has been obtained; in 1908 the value of Ohio's output of these stones was $482,128.
Grindstones, building-stone, talc, gypsum, marble and phosphates are also produced.
Some light grey sandstone found in Rocky Canon, Gallatin county, looks much like the Berea (Ohio) sandstone; and a sandstone quarried at Columbus, Yellowstone county, was manufactured into grindstones equal to those made from the Berea stone.
Extensive coal mines exist in the vicinity; and at Gateshead Fell are large quarries for grindstones, which are much esteemed and are exported to all parts of the world.
Grindstones are produced in considerable quantity in Huron county.