"Mastering Resources in LEGO Fortnite: A Guide to Copper, Malachite, Bones, Iron, and Metal Smelters"

In LEGO Fortnite, players can obtain Copper Bars by mining Copper ore in a Lava Cave found in the desert biome. To make Copper Bars, players need to use a Metal Smelter and combine one piece of Copper with two pieces of Brightcore. Brightcore, Obsidian Slabs, and Blast Cores can also be found in the Lava Cave. Blast Cores are dropped by defeating Blaster mobs.