The Oxidized Copper Chain is the final stage of the Copper Chain’s oxidation process, featuring a fully aged teal color with prominent green tones. It functions the same as other copper chain variants and can be used decoratively or structurally to hang lanterns, copper lanterns, bells, and hanging signs. The Oxidized Copper Chain connects seamlessly to other chains, can be placed both vertically and horizontally, and remains suspended without needing any supporting block.

The Oxidized Copper Chain naturally forms when a Weathered Copper Chain continues to oxidize over time. Players can preserve its appearance by waxing it with Honeycomb, creating a Waxed Oxidized Copper Chain, or revert it to an earlier oxidation stage using an axe. It retains the same blast resistance, hardness, and functionality as other chain types, making it ideal for builders seeking a fully patinated copper look in their structures.