Because the two materials exhibit a high thermal conductivity, they allow the device to cool more efficiently while distributing said heat -- 25 percent quicker than the pure copper in many pieces of tech.

ENGADGET: NC State researcher finds more efficient way to cool devices, looks to cut costs too

It used to be that we got all of our copper either from the very small deposits of pure metallic copper or from the larger deposits of copper sulfides.

FORBES: Peak Copper: Worldwatch Institute Gets It Wrong Again

As for individual stocks, there are very few pure platinum plays, as the ore it is mined from also contains nickel and copper.

FORBES: Buy Platinum and Sell Gold