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Roger Weller, geology instructor

by Antonio Robinson
Physical Geology
Fall 2014




What is Sapphire?

     Sapphire is a blue birth stone, if you were born in September (like me) this is your stone. Sapphire is a gemstone as well, but it is in fact not your ordinary gemstone. It is one of the hardest gemstones to be discovered by man, the third hardest in fact according to the Mohs scale of hardness. It is made up of corundum which is aluminum oxide.

What do we use Sapphire for?

     As stated before, Sapphire being one of the hardest materials it has its uses.  But not only is this gemstone ridiculously hard, it has a remarkable beauty.

Description: apple watch

     Sapphire stone today is now being put into our modern day technology.  One of the most famous companies to do this is Apple. And of course they put it in their most popular toys, the Apple iPhone 6, as well as their iPad mini and watch.  However the iPhone and iPad screens arenít made out of the sapphire itself.  Instead the sapphire can be found on Apples home buttons, and on the back of their cameras serving as a protective case. The only item to actually use sapphire glass for display is the Apple Watch.

     Again not only is sapphire very hard, it is seen very commonly seen in jewelry.  Its blue is attractive to people, and other people buy it just because itís their gemstone.


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