A type of fibrous quarts called chalcedony; used to make marbles highly desired by players, as in bulls-eye agate. A name adopted by early American marble manufacturers to describe any and all classes, types and styles of marbles, including; ceramic, as in the trademarked Dykes American Agates, registered to Samuel C.Dyke; also, glass toy marbles as in Akro Agates registered to The Akro Agate Company. A name for a marble, a specific type of marble made from agate, a naturally occurring stone called chalcedony, a type of quartz, with bands of different colors layered through the body of the stone.
Stan Hywet Hall & Gardens, one of Americas finest castles, now stands upon this site. Jaspers are a variegated white-bodied stoneware with different colored lines of blue, green and rarely pink, running through the body of the marble. Also called an immie or imitation agate in the historic record; cornelian is an antiquated spelling of the more modern usage carnelian.
When ground into spheres the marble appears to have a bulls-eye design at one pole.