Metals are not made from a single natural resource. Instead, they are elements, which are the fundamental building blocks of matter. These elements exist in the Earth's crust and are extracted through various mining processes.

Here are some examples:

* Iron: Found in iron ore

* Aluminum: Found in bauxite

* Copper: Found in copper ore

* Gold: Found in gold ore

* Silver: Found in silver ore

* Titanium: Found in ilmenite and rutile

So, while metals are made from naturally occurring elements, the specific resource they come from varies depending on the metal.