The Weathered Copper Chain is the third oxidation stage of the Copper Chain, displaying a greenish hue with brown patches as the metal continues to corrode. It functions identically to the regular and exposed variants, serving as a decorative and functional block for suspending lanterns, copper lanterns, bells, and hanging signs. The Weathered Copper Chain can be oriented vertically or horizontally, connects seamlessly to other chains, and can remain freely suspended without support.

Players can obtain the Weathered Copper Chain by allowing an Exposed Copper Chain to oxidize further over time or by using one directly in creative mode. Applying Honeycomb creates a Waxed Weathered Copper Chain, preventing further oxidation, while using an axe can scrape it back to an earlier state. Despite its weathered appearance, it retains the same blast resistance, hardness, and versatility as other chain types, offering a more rustic look for copper-themed builds.