Copper is a mineral with many benefits! Not only is it the best conductor of electricity and heat, it also has ductile and malleable properties making it easy to form into various shapes including wires and jewellery.
Additionally, copper has a germicidal effect which neutralises many germs. It is often used as an alloy with tin (Sn) in things like doorknobs due to its automatic disinfecting qualities. This property was initially observed in Classical antiquity and copper was used by ancient civilizations as medicine for treating wounds.