BUFONITE
n.[L. bufo, a toad. ] Toadstone, or fossil-teeth of the anarrhicas or sea-wolf, formerly much esteemed for its imaginary virtues and worn in rings. It was named from an opinion that it was found in the head of a toad.
Bu "fon *ite, n. Etym: [L. bufo toad: cf. F. bufonite. ] (Paleon.)