The iPhone 6’s display has been the subject of many talks, largely because Apple is using a new material to create it – sapphire. The use of a new material shows an attempt by Apple to improve the durability of the iPhone’s display, but it also shows that the company is moving away from their largely celebrated Gorilla Glass.

A couple of months ago, the iPhone 6’s display was put to the test using a knife. A new video has been released by the same YouTube user, Marques Brownlee, this time showing the display being tested with two different types of sandpaper and an arrow.

The video shows that the display is much more likely to get scratched from sandpaper than a knife, however the new sapphire display fares much better than the iPhone 5s’ display. It is a different story with the arrow, which shatters the display completely upon impact.

Another thing to note about the video is that it explains the science behind the display, showing where each different material is on Mohs scale of mineral hardness. Apple’s new display, which is not pure sapphire but instead a composite involving sapphire, will rate much higher on the scale than Gorilla Glass, which was used on previous versions of the iPhone.

While it is true that a pure sapphire display may be more scratch resistant, there are a number of advantages to using a hybrid instead. For example, a sapphire hybrid will be more resistant to bending, also meaning that it will be able to fare better if dropped.

Rumors about the upcoming iPhone 6 continue to rise, and it is still unclear as to whether or not Apple will use the new display material across the entire iPhone 6 line or just on the flagship model.