Well first off Xul, you should step back into your highschool earth science class. Take a look at the Mohs hardness scale and you will quickly realize that sand(quatzite for those who don't know its mineral name) is actually harder than both glass and hardened steel.
Secondly, yes I do know what gorilla glass is, as I have it on my S9, which is both scratched AND shattered. These two things happened in two different situations.
Maybe I will make a video of me scratching a section of my gorilla glass, to prove to the idiots on the internet that is actually scratch able.