Irostone can be mined up with any pickaxe. If mined without a pickaxe, it will drop nothing.
Irostone makes up the stone layer in Iromine, below the surface, similar to stone in the Overworld.
Irostone generates as a part of the following structures: Professors Lab.
Irostone serves as a building material and as a decorative block.
The player can obtain foraging drops when mining up Irostone.