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Cobalt: Rare and Everywhere

NPR

Cobalt used to be a byproduct of copper mining, used in everyday, boring stuff like tires and magnets.

But that all changed when someone discovered its ability to stabilize the lithium in batteries for electronics like cell phones.

Now it's become one of the most important and sought after metals on the periodic table. Which has implications for big tech firms like Apple.

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Stacey Vanek Smith is the co-host of NPR's The Indicator from Planet Money. She's also a correspondent for Planet Money, where she covers business and economics. In this role, Smith has followed economic stories down the muddy back roads of Oklahoma to buy 100 barrels of oil; she's traveled to Pune, India, to track down the man who pitched the country's dramatic currency devaluation to the prime minister; and she's spoken with a North Korean woman who made a small fortune smuggling artificial sweetener in from China.
Cardiff Garcia is a co-host of NPR's The Indicator from Planet Money podcast, along with Stacey Vanek Smith. He joined NPR in November 2017.