Barnacle

Barnacles are Harvesting Nodes found exclusively on the backs of Reefbacks.

Appearance
Barnacles are similar in appearance to the Blue Barnacles and clearly have some sort of relation to them. Barnacles are also found on real life whales which may hint some similarity between the Reefback and the aforementioned.

Barnacles can drop the following: Currently Copper Ore is much more common.
 * Copper Ore
 * Silver Ore