In Pictures: Here’s how Apple is spending $1 billion on sapphire

From rare gemstone to mass market material for future iPhones, iPads and more?

Apple has hugely ambitious plans for synthetic sapphire. But to make them real, and affordable, Apple singlehandedly has to change the mineral Corundum, an aluminum oxide that is better known as sapphire, from a rare gemstone into a mass market industrial material.

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