Diamonds is not a stone it's crystal actually.
But the hardest stone is granite stone.
Diamonds are the hardest naturally occurring substance known. For counter tops Marble would be the hardest rock for you.
the hardest thing about arthritis is dealing with the horrible pain
yes
The Pokémon Ditto.
Silver Dream
One of the hardest equations in the world is Fermat's Last Theorem. It is included in the Guinness Book of World Records for "most difficult mathematical problems". It is sometimes called Fermat's conjecture.
Diamond is the hardest precious stone
the hardest precious stone is the diamond
The hardest gemstone is the diamond.
Diamond is the hardest mineral known.
Emerald is the forth hardest stone. It has hardness of 7.5 to 8
Stone Henge.
Diamond
diamond because it is beautiful and the hardest type of rock
C'mon. Diamond is the hardest mineral on Earth.
No. Diamond is the hardest natural mineral on earth.
The hardness of an emerald is 7.5-8. The hardest stone is a diamond which has a hardness of 10.
diamond because it is a native crystalline carbon that is the hardest known mineral