We're borrowing Minecraft from a friend and need to find iron ore to smelt. Where's the best place to find it? I thought I saw something online about it being in "veins" but I don't really know what that means...
It's everywhere, all you need to do is dig through some stone to find it. Head over to the Minecraft wiki or get the official wiki app, that'll tell you everything you need to know, good luck!
