Oxidized Copper is the final oxidation stage of copper blocks, featuring a fully green patina. It does not oxidize further and can be waxed with a honeycomb to prevent it from reverting. It can be mined with a stone pickaxe or better; otherwise, it drops nothing.
It has a hardness of 3 and can be reverted to earlier oxidation stages by scraping it with an axe or by being struck by lightning. Oxidized copper is primarily used for decoration, crafting cut copper, and as a storage block for copper ingots.