Ores

Ores are primary crafting materials necessary for game progress. They usually must be crafted into bars at a Furnace, after which they can craft several essential tools, weapons, armor, and other items. Some items require raw ores themselves, most commonly potions. Raw ores can also be used as plain blocks for construction.

The Calamity Mod adds 10 new ore blocks to the game, that are used to craft a variety of tools, weapons, and armor. With the exception of Sea Prism, Charred Ore, and Scoria Ore, which are generated upon world creation, all ores are spawned upon the defeat of specific bosses.