Why Apple Wants To Make Sapphire Crystal Screens


Apple has invested in the production of a new type of smartphone screen that is harder and more resistant tosapphire crystal screen scratches, according to a report. Its new sapphire crystal production plant is expected to be up and running by the end of the month, but what has a precious gemstone got to do with smartphone and tablet computer screens?

What Is It?

Sapphire is a super-hard form of optically transparent crystal that looks and behaves like glass or diamond.

Isn’t Sapphire A Precious Stone?

Sapphire takes many forms, one of which is a gemstone. It comes in various colors including yellow, purple, orange, green and red. A red sapphire is known as a ruby, but the most recognised sapphire gemstone is of blue tint.

Won't Sapphire Crystal Make My Screen Blue?

It’s the impurities in sapphire gemstones that give crystals their colors. The sapphire crystal used for screens, however, is colorless because it is more pure, lacking any of the iron, titanium, chromium, copper or magnesium that makes mined gemstones unique.

Is It Dug Out of The Ground?

Sapphire gemstones are commonly mined like most other precious gems, but the sapphire crystal used in most non-jewelery applications is artificially manufactured.

The first synthetic sapphire was created in 1902 by a French chemist called Auguste Verneuil. Since 1902 various methods of making sapphire have been developed, but generally they use high heat and pressure to turn aluminium oxide power into crystal.

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