Improved sapphire technology has been coming for years and GT Advanced Technologies (NASDAQ: GTAT) said demand would only be a matter of time. Today, that potential looks like a reality after the company announced a supply agreement with Apple (NASDAQ: AAPL), which will begin using more sapphire in future products.  

Based on the reaction today, investors are more than willing to overlook a terrible third quarter with the hope that Apple will be the first of many companies to adopt sapphire technology in electronic devices. After all, the future is what's really exciting in the sapphire world right now.

Third quarter by the numbers
First, GT Advanced Technologies reported third quarter earnings, which showed continued deterioration in its business. Revenue was just $40.3 million in the quarter and net loss was $38.1 million, or $0.31 per share.

Full-year revenue is expected to be $290-$320 million with a gross margin of 30%-32%, and a non-GAAP loss of $0.40-$0.50 per share. The good news is that the Apple deal is expected to change all of that. Next year's revenue is expected to be $600-$800 million and gross margins will fall to 25%-27%, mostly due to lower margins on Apple supplies. But who cares about a small decrease in margins if there's going to be a big increase in sapphire sales?  

The deal with Apple changes everything
Normally, GT Advanced Technologies sells equipment that's then used to make photovoltaic modules, LEDs, or other products. With Apple, GT will own and operate the ASF furnaces and other equipment at an Apple facility in Arizona.

This wouldn't be possible without an infusion of cash, so Apple has made a prepayment of $578 million to GT Advanced Technologies, which will be reimbursed between 2015 and 2020. This is a long-term bet that sapphire material will be the future for Apple's devices and GT is one of the big winners as a result.

Why Apple and why now?
The question you may be asking is why Apple would want to use sapphire products on the iPhone and potentially the iPad? The answer has to do with the superior physical properties sapphire can create over existing products, including Gorilla Glass.

According to GT Advanced Technologies, sapphire is nearly as durable and scratch resistant as diamond and it's more dense and stronger than Gorilla, Dragontrail, or Xensation Glass. In theory, it should be almost impossible to scratch your iPhone or break the cover glass with anything less than a touchdown spike.  

The future of materials manufacturing is here
This is the first major sapphire product deal for GT Advanced Technologies but investors shouldn't think it will be the last. Sapphire can be modified to make a variety of products with varying physical properties, making it perfect for new electronic devices.

I think we're scratching the surface of the industry's potential and Apple is on the leading edge of growth in sapphire use.

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Fool contributor Travis Hoium manages an account that owns shares of Apple. The Motley Fool recommends Apple. The Motley Fool owns shares of Apple. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.