There is none
Answer:
There are two naturally occurring materials harder than normal diamonds:
Diamond is a the hardest mineral, so yes. Minerals are what make up rocks.
Diamond is the hardest mineral on earth. It can also cut through any other material. Interestingly, they use diamonds to cut diamonds. Thus: diamond is harder than zinc.
Harder..One of the hardest things in the natural world.
Diamond has always been considered the hardest natural substance in the world. However, wurtzite boron nitride and mineral lonsdaleite have recently been discoverd and are much harder than diamond.
Diamond is the hardest known natural mineral on earth, raking top or 10 on the Mohs Scale of hardness. Copper ranks 2.5-3 on the same scale, rating it as much softer than diamond.
No. Diamond is the hardest natural mineral on earth.
Diamond is the hardest natural mineral; nothing is harder.
diamond
No, diamond is the hardest natural mineral.
No, diamond is the hardest known mineral.
Yes, diamond is harder than granite. Diamond is the hardest mineral known. And it is several times harder than granite.
Yes. Diamond.
No, diamond is the hardest naturally occurring mineral.
Yes, the mineral we know as diamond is harder than any steel. Diamond is the hardest substance we know of.
No. From its Wikipedia entry about bedrock: "In stratigraphy, bedrock is consolidated rock underlying the surface of a terrestrial planet, usually the Earth." Diamond rates as 10 on the Mohs Scale of Hardness -- the highest rating. It is harder than any other mineral, which would compose bedrock.
Our crystal ball has been broken, so we are not able to predict what might happen in the world should a mineral harder than diamond be discovered in future.
No Feldspar is rated 6 on the Mohs Scale and diamond is rated 10. The mineral which is rated 9 on the Mohs is Corundum but there are other minerals which are harder that that but less harder than diamond.