carnelian(n = noun.substance) cornelian - a translucent red or orange variety of chalcedony;
is a kind of calcedony, chalcedony
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. [1913 Webster]
carnelian, var. of CORNELIAN.