noun. A pale to deep red or reddish-brown variety of clear chalcedony, used in jewelry.

noun. The beautiful red or reddish color of this stone. The distinctive colors of Cornell University are cornelian and white.

noun. A siliceous stone, a variety of chalcedony, of a deep-red, flesh-red, or reddish-white color.

noun. A variety of chalcedony, of a clear, deep red, flesh red, or reddish white color. It is moderately hard, capable of a good polish, and often used for seals.

noun. A hard, reddish brown chalcedony; used in jewelery,

noun. a translucent red or orange variety of chalcedony

"The orange stone is sometimes referred to as carnelian agate as, held up to the light, it exhibits the parallel banding typical of agates."

calcedony  chalcedony  

agate  amethyst  aquamarine  beryl  carbuncle  

cornelian