Apple has invested $700 million in producing synthetic sapphire, one of the hardest minerals on Earth, for the newest iPhone’s display screens. Sapphire is expensive to produce, but the material does not crack or scratch as easily as the glass currently used in iPhones. Apple and GT Advanced Technologies have opened a facility in Arizona to produce the new material. The facility’s ability to meet the demand will determine whether Apple rolls out an iPhone with a sapphire screen. Continue reading New iPhone May Feature Scratch-Resistant Sapphire Screen