noun
definition
An abrasive wheel for sharpening, polishing or grinding.
Examples of grindstones in a Sentence
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.
Grindstones are produced in considerable quantity in Huron county.
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.
The sandstones are used for building, and for millstones and grindstones.
Today there are three water wheels driving large tilt hammers and grindstones.
Flagging, building-stones and grindstones, taken from quarries in the vicinity (known as the Berea Grit quarries), are shipped from Elyria in large quantities.