Ironfish

Ironfish are gigantic midwater fish that feed primarily on the muskscale fish and the rustfrond plant, both of which are high in iron and mineral content. As a result of their diet, the flesh of the ironfish is extremely unpalatable, making them useless for eating. However, the scales of the ironfish are made from actual solid iron, and aesthetically-pleasing gallstones - the results of several decades of mineral accumulation - can often be found in the salt-bladder of the fish.

Ironfish are caught from Fishing Docks, after which they are sent to an Ironfishery to be turned into Iron and Gems.