A recent video of an alleged iPhone 6 and its incredibly sturdy screen has been making the Internet rounds, and it's causing some serious techie-gushing due.

The video shows a man using a knife to stab at the screen of the iPhone 6, trying to scratch it. The screen is also bent in weird angles, but still surprisingly retains its shape.

Apple has come out and said that they are not responsible for the release of the video, but have not confirmed as of yet whether it is the new iPhone 6 screen.

About 18 months ago, Apple discussed moving to a tough-as-nails "sapphire glass" for their new iPhone screens. With that in mind, it is quite possible that the screen in the video is indeed for the iPhone 6.

Professor Neil Alford of the Department of Materials at Imperial College, London, believes that the knife and key scratching tests "could very well be legitimate."

"I think Apple have been quite cunning," Alford told Guardian reporters. "What I think they've done is make a screen out of sapphire, which is incredibly scratch resistant, incredibly hard and has a high elastic modulus -- meaning it's very stiff."

Apple already uses sapphire crystals in their camera lens and for the covers of the iPhone 5S. Sapphire glass is the third hardest substance known to man, so it makes sense that Apple would decide to make a whole screen out of it.

It is speculated that this new sapphire glass would rival, and perhaps beat, Corning's Gorilla Glass, which is currently used for the screens of most smartphones and tablets.

"In my opinion the screen being shown off in the video could well be a sapphire screen. If you make sapphire thin enough, and it's flaw free, you can bend it quite considerably because it has an enormous strength," said Alford

Alford continued, explaining that while sapphire glass is more costly to manufacture, there are virtually no down sides to using it.

"It's not a surprising thing to do, but it's quite a large area they're producing and that's really quite a challenge. I'm pretty impressed with that, actually," said Alford.