This mod makes copper tools and armor oxidize over time, much like copper blocks. Can also be used as a framework to make any item oxidizable.

Items will oxidize while they're in your inventory, equipped, or dropped on the ground. They won't oxidize if they're stored in a chest for example.

Oxidization speed is similar to the speed copper blocks oxidize at. It's also increased depending on how much the item durability differs from the current oxidation state.
Crafting recipes:



This mod can also be used as a framework to make any item oxidizable by creating a data pack and resource pack. The default data pack which makes copper tools and armor oxidizable can be disabled like any other data pack if desired.
oxidizable item tag from this mod (example). This tells the mod to:
items folder has to be under the namespace of the mod which adds the item you're adding assets for, or the minecraft namespace in case of vanilla items, as you're overriding the original files.oxidizable_copper_gear).