The Coating that Makes iPhones Touch Sensitive is Running Out

No, iPhone screens are not magic. They are coated in a transparent material called indium tin oxide that senses when a finger makes contact.

ITO comes from the metal indium, which must be mined. Prices are rising as it becomes more scarce; the U.S. government estimates that from 2010 to 2011, the cost for indium rose by 25 percent. The world could run out altogether in the next decade.

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via: GigaOm

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