Ores

Ores are materials, that you can get by mining the rocks with it using a pickaxe. Note that you can't mine all ores with low level pickaxes.

Iron - used in crafting and making steel.

Coal- used in crafting and making steel.

Gold - used in crafting.

Palladium - used in crafting.

Tellurium - used in crafting.

Polonium - used in crafting.

Steel - used in crafting*

* Steel is the only ore that can be gotten not from rocks with ores, but with crafting in the recoures craft page.