Apple announced a second Apple factory in the US, in Mesa, Arizona.

The purpose of the factory hasn’t been named specifically by Apple, though GT Advanced says it has entered “into a multi-year supply agreement with Apple Inc. to provide sapphire material.” Sapphire is used abundantly in Apple products, including the Touch ID fingerprint sensor and camera lens in the iPhone 5S. This gels nicely with the word about “components” Apple gave us.

Any chance of sapphire replacing gorilla glass in future iOS devices?