just need some so i can mine all of the diamonds that i have found! and i‘m struggling to find some iron so just looking for a rough area that i can find some :) 5* for the best answer!!
Usually I find them near mountains where the most stone can be seen. If you can find an unexplored Cave there is sure to be iron there.
Just look on the side of a mountain. It is usually by Cole. If you can't do that then dig a little in a cave that should do the trick ;D
Iron is fairly easy to find, just go fairly deep into caves and you'll find them. BTW, in case you don't know, Iron is tan-ish color.