A diamond
The harder rock is diamond
Harder..One of the hardest things in the natural world.
Diamond is a the hardest mineral, so yes. Minerals are what make up rocks.
diamond is harder than rock and so are many minerals like silver and nickel rock is actually known as a silicate minerals silica and oxygen quartz is one of the hardest on of the silicate minerals and the most stable
A rock drill may be tipped with industrial diamonds, because the diamond tip makes the drill harder than the rock(s). Diamond is the hardest natural mineral on Earth.
Diamond is harder than onyx.
Diamond is harder than plastic.
The hardest substance that is naturally occurring is a diamond. However, there are harder substances that have been made by scientists in labs.
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