Diamond is harder than plastic.
Diamond is harder than onyx.
Diamond is harder than any metal.
No. Diamond is harder than emerald.
Diamond is harder than steel: you can scratch steel with a diamond, but steel will not scratch a diamond.
diamond
A diamond
nothings harder than a diamond
Nothing is harder then a diamond. Only like a drill can break it.
Yes, diamond is harder than granite. Diamond is the hardest mineral known. And it is several times harder than granite.
Yes, the mineral we know as diamond is harder than any steel. Diamond is the hardest substance we know of.
Diamond is harder than iron. Diamond is the hardest known natural mineral and can scratch iron.
No.