n. Among the ancients, a bright-colored chalcedony (not, however, including carnelian), translucent and varying in color, green being apparently most common. It was highly esteemed as a precious stone.n. In modern usage, a closely compact crypto-crystalline variety of quartz, opaque or nearly so, and colored red, yellow, or brown, or less often green.n. An earthenware made of pounded spar.n. Same as jasper-ware.Same as jasperize.