Yeah, I just looked at the website, Gorilla Glass. There is no way your finger scratched the glass unless you have diamond finger tips . Seriously you must have had some sort of serious grit or else it got scratched some other way.
Nope..nothing but the Tbolt in my right pocket, an I work in a Pharmacy so no dust there.
I even pull my pocket inside out to make sure there isn't any dust or lint before putting the tbolt inside.
it's not just one scratch either but multiple very small light scratches right where my thumb slides up and down., Im very careful with my phone, I know its not me being careless.
I don't have the softest hands in the world but it shouldn't scratch like that.