Second leaked iPhone display test
YouTube user Marques Brownlee releases a second scratch test on what he claims is an iPhone 6 sapphire display obtained from a factory, as well as an iPhone 5 for comparison. The iPhone 5 shows much heavier damage than the iPhone 6, but he says the fact that he is able to scratch the iPhone 6 with sandpaper at all proves that it is not pure sapphire, because sapphire is higher than sandpaper on the Mohs scale.