used extensively, particularly in electrical wiring. although overall only a small amount is used in coinage, it nevertheless means that we touch copper every time we handle a coin. copper forms alloys more freely than most metals, and with a wide range of alloying elements, including zinc, tin, nickel...
motors electric motors expansion/pci boards floppy disks gold memory circuit board green boards hard drives hard drives with board keyboard/mouse keyboards keyboards / mice laptop lcd monitor lithium-ion battery low grade boards medium grade boards memory metal back cpu microwaves modems/routers nicd...