Reinforced materials

Reinforced Materials
In addition to crafting tools and weapons from normal stone, iron, gold, and diamond, stronger, more durable tools can be constructed from reinforced materials as well. The pattern is the same for all reinforcable materials: five units of the material arranged in a cross in the workbench.

Reinforced materials are required for the construction of pickaxe, shovel, and axe heads, and sword blades, which are needed to craft reinforced tools.