Exposed Copper is the second oxidation stage of copper blocks, transitioning from its original state as it weathers over time. Like other copper blocks, it can be waxed using a honeycomb to prevent further oxidation. Exposed copper can be mined with a stone pickaxe or better; otherwise, it drops nothing.
It has a hardness of 3 and takes less time to break with stronger pickaxes. Exposed copper can be reverted to its previous state by scraping it with an axe or by being struck by lightning. It is primarily used for decoration, crafting cut copper, and as a storage block for copper ingots.