It's rated as 10 on the Mohs scale of 10: the hardest mineral on earth. Only a diamond can scratch another diamond. The field test for diamond is 'extreme hardness'.
Directly, there's nothing in the natural world harder than a diamond.
No natural substance is equal in hardness to a diamond.
diamond's hardness is a factor of 10. So this is the highest hardness, no mineral has this hardness! You can't scratch a diamond.
Diamond is the hardest natural material, scoring a perfect 10 on the Mohs scale of mineral hardness. The hardness of a diamond is measured by its ability to resist scratching or abrasion by other materials.
Diamond is the top of the Mohs hardness scale, ranked at 10.
The hardness of different minerals and things. Like talc would be at one end of the spectrum, and a diamond would be at the other (since a diamond is the hardest mineral known).
The mineral with the greatest hardness is the diamond.
The hardest mineral is diamond, which has a hardness of 10 on the Mohs scale.
Hardest - Diamond Hardness - 10
diamond is mainly known for its hardness.
Diamond is the hardest gemstone with hardness being 10. But hardness varies at octahedral faces of diamonds. So a diamond can only be scratched by a diamond itself.
The only mineral with a hardness of 10 on Moh's scale is diamond.
A diamond