ETYM Old Eng. jaspre, jaspe, Old Fren. jaspre, jaspe, French jaspe, Latin iaspis, Greek; cf. Per. yashp, yashf, Arabic yashb, yasb, yasf, Hebrew yâshpheh. Related to Diaper.
An opaque form of quartz; red or yellow or brown or dark green in color; used for ornamentation or as a gemstone.
Hard, compact variety of chalcedony SiO2, usually colored red, brown, or yellow. Jasper can be used as a gem.