Sapphire glass might not be ready for prime time

Sapphire glass might not be ready for prime time   Four times harder than regular glass, phone manufacturers have been talking about using sapphire glass as a replacement for Gorilla Glass, on a smartphone's display. But some manufacturers say that the time is not right for such a switch. Sure, to scratch sapphire glass, you would need a diamond, or some other material that rates a "10" on the hardness scale. Gorilla Glass is ranked as a "7" on the test. But there is more to look at besides a material's resistance to scratching. The pricing of a material is also important.While sapphire glass is very expensive, Apple does use the material ... Read more >