Copper is known to exist in more than 160 different minerals.
Although often described as a mineral it's actually a chemical element.
As well as being a good conductor of electricity copper is also a good conductor of sound.
It was the first metal to be used by humans.
Copper was imported from Cyprus by the Romans. Originally called "aes cyprium" meaning "metal of Cyprus", it was later shortened to "cuprum."
Most sterling silver is alloyed with copper to improve hardness and durability.