Copper is mined as copper it is not an alloy
If it is a copper nugget, it must be made of copper.
The penny is made out of copper.
a copper kettle is made of copper, a browny red metal. . .
Copper is a metal and is made of copper
Copper
copper
Copper granules are very small and rice shape copper made by copper granulators. They are usually made from copper scrap for the purpose of recycling.
The penny is made partly of copper.
they are made of Copper, bronze and brass
Copper nitrate is a compound. It is made from oxygen, copper and nitrogen.
it is a rod made of copper
no its made out of gummy bears of course keys are made out of copper