Currently, diamond is regarded to be the hardest known material in the world. But by considering large compressive pressures under indenters, scientists have calculated that a material called wurtzite boro
Indeed, diamond is the hardest material in the world. Material hardness is a property determined by scratch resistance.
Explanation:
A substance can only be scratched by something of equal or greater hardness. Therefore, only a diamond can scratch another diamond. Hope this helps! :)