Copper Ore

Copper Ore is an early game ore, which spawns on the surface as well as in the Underground and Cavern biomes. It is the weakest tier of ore in the game. Its primary use is to make Copper Bars, which can be used to create the Copper tier of equipment. The equivalent of Copper Ore is Tin Ore, which will sometimes replace Copper on a world. The hardmode ore that will spawn when you have Copper in you world will be Palladium.

History
Minerai de cuivre Copper Ore Медная руда