Iron is a mineral which may be found underground. It is the most common mineral which may be used to make tools and armor. Iron ore requires a stone, iron, or diamond pickaxe to successfully mine. It must then be smelted in a furnace to make an iron ingot; iron ingots can be used to make medium quality tools, armor, buckets, Flint and Steel and shears. A full list of craftable items can be found at Crafting.