Copper Ore

Copper Ore is a resource found mainly in the cave biome, though it can also appear rarely near the surface.

By itself, Copper Ore has little practical use, but it becomes very valuable once processed in a Furnace. Smelting it produces Copper Ingots, which are an important material for progression and crafting. In other words, Copper Ore is mainly a raw input resource: collect it when exploring underground and bring it back for refining rather than expecting immediate use.

• Most Copper Ore is obtained from caves, so early mining expeditions are the best way to stockpile it.
• If you find it near the surface, it is still worth gathering, but cave deposits are the primary source.
• Prioritize Furnace access as soon as possible, since the ore’s real value comes from being turned into Copper Ingots.