Apple Sapphire i Phone Lens Whats it made of

What is the Apple iPhone camera lens actually made of Check out this incredibly in depth look into what elements make up the Apple iPhone camera lens. Why does the iPhone lens scratch at a level 6 on Mohs Scale of Hardness Ill be using the Diamond selector tool, an XRF machine AND an electron microscope. Apple has been telling us that their camera lens is made from sapphire ever since the iPhone 5s. That is 5 different phones now that have this lens. (5s, SE, 6, 6s, and 7) Finding the elemental ana