Olympic gold medals are mainly made from silver…
'According to International Olympic Committee regulations, Olympic gold and silver medals must be made out of at least 92.5% silver, with gold medals plated with at least 6g of gold. Bronze medals are made mostly of copper.
Each medal must be at least 60mm diameter and 3mm thick, but each country’s organising committee is able to create their own bespoke design. They also feature a ribbon which is designed by the organising committee.’
^ from https://therunningchannel.com/are-olympic-medals-made-of-gold
