Do you know what the material is made into coins and paper money?

Do you know what the material is made into coins and paper money?

  First coins:

 In most countries of the world are manufacture of copper, nickel and zinc, so that the amount of copper that are usually higher. But some states still use a normal iron, aluminum, carbon, tin, gold and some used so far.

Second paper money:

 Basic material in paper money is the improved cotton so that live longer and stronger, and is sometimes mixed with flax and hemp and other textile fibers.