Carbuncle vs Bdellium - What's the difference?

carbuncle | bdellium |

As nouns the difference between carbuncle and bdellium

is that carbuncle is (archaic) a deep-red or fiery colored garnet or other dark red precious stone, especially when cut cabochon while bdellium is probably an aromatic gum like balsam that was exuded from a tree, probably one of several species in the genus commiphora .