cornelian

n semi-precious stone of a reddish, reddish-brown or white colour 光玉髓（次等宝石, 呈红色、 红褐色或白色）.

core, CORE (also Core), corgi, coriander, coring bit, Corinthian, cork, corkage, corked, corkscrew, corm, cormorant, corn, corn on the cob, corn pone (US also pone), corn-cob, corn-exchange, cornea, corneal, corned, corner, corner-stone, cornerstone, cornet, cornfield, cornflakes, cornflour (US `cornstarch), cornflower, cornice, Cornish, Cornish pasty, cornstarch, cornucopia, corny, corolla, corollary, corona, coronary, coronation, coroner,