They're printed on a specific paper which is made from a blend of cotton and linen.
cotton
It is money that is made of paper. It can not be photocopied.
Paper and other chemicals and things.
Bank notes (paper assurances of money) are also known as bills, notes, or paper money. Notes are generally made from cotton paper and feature many anti-counterfeit measures.
Coins at the Canadian Mint, and the polymer notes are made in Australia.
Historically, money ( coinage) was made from gold, Silver and Copper. the first bank note (paper) to be issued was in Eng;land in avout 1700. Modern money (coinage) is made from an alloys of copper, chrome, nickel and steel. Mondern bank notes were until recently a special form of paper. however 'paper' money is now made from a plastic. So the phrase 'plastic money' ( credit card etc., ) , now bank notes takes on a whole new meaning.
A round form of money, worth a certain amount. Any monetary unit that is made of metal. This excludes paper money and promissory notes.
A bundle of money notes is commonly referred to as a "wad" or a "stack" of cash.
In India currency notes are made in Nasik.
coins, notes
the plastic Australian notes are made out of polymer
Euros