Scratch hardness test question?
I know diamonds are very hard, but does that test relate to an activity such as smashing it against concrete? Like if you have a sledgehammer with a diamond head, would it work better than a metal one, or would it shatter?
Diamonds are harder than sledgedge hammers and concrete. No the diamond will not shatter.
Harder stuff shatters easier - that's why ceramic plates break when you drop them on the floor and why steel shatters in polar cold when it's struck.