Magnets are conductors of electricity. If the magnets are made of a metal alloy, such as samarium cobalt, they become excellent conductors of electricity.

Ask yourself this: have you ever held a magnet? Then there has been a magnet in your environment.

If you mean to ask if there are naturally ocurring magnets, the answer is also yes. Neodymium and Samarium-Cobalt are the two most common.

Cobalt is ferromagnetic, but considerably less so than iron. Alloys of cobalt such as aluminium, nickel, cobalt and iron, known as Alnico, and of samarium and cobalt (samarium-cobalt magnet) are commonly used to make high quality permanent magnets.

Yes, pure nickel is one of the few metals that's ferromagnetic; i.e. it's attracted to a magnet and can itself be magnetized. Iron and cobalt are the only other two common ferromagnetic metals. Gadolinium, neodymium and samarium are the remaining metals.