Copper is both shiny and opaque. Being a metal it’s also quiet heavy. This is probably the first medal used by man. Copper was found on the island of Cyprus so many think this is where it gets its name.
The metal copper makes bronze when mixed with tin and was used before iron was in general use. Today it’s used in wiring and water pipes.
While living in California we had all our plastic pipes replaced with copper after the plastic burst and flooded the house. What a mess that was. And of course this “adventure” happened over Thanksgiving. The house was torn up for weeks.