Sapphire glass

Unscratchable screens would be a huge boon for the iPhone 6, and it looks like this dream might be close to becoming a reality. Apple announced late in 2013 that it was planning to open a sapphire glass manufacturing facility in Arizona, employing 700 people and capable of churning out between 100 million and 200 million iPhone displays each year. The Arizona plant reportedly began shipping sapphire to China for manufacturing in late April.Shares of GT Advanced Technologies, the company reported to be manufacturing Apple’s new iPhone covers, got a nice boost from reports that sapphire glass will be used for the iPhone 6. Just how resilient is the material? Check out our Q&A on sapphire glass, which includes a video of a concrete block being dragged over a phone screen — with no apparent damage.

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Mike ElganMike Elgan writes about technology and culture for a wide variety of publications. Follow Mike on Google+, Facebook and Twitter.

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