Millstone Wikipedia
Jan 10, 2003#0183;#32;Millstones or mill stones are stones used in gristmills, for grinding wheat or other grains. Millstones come in pairs: a convex stationary base known as the bedstone and a concave runner stone that rotates. The movement of the runner on top of the bedstone creates a scissoring action that grinds grain trapped between the stones. Millstones are constructed so that their shape and configuration