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Corundum is a mineral, therefore it could not be the hardest rock.
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∙ 14y ago
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What rock or mineral is the hardest?
Corundum.
What is the hardest rock in the world besides diamond?
The hardEST is a diamond, and some other hard ones are corundum and topaz. If you look up Moh's hardness scale, it will show you some.
What is the second hardest natural substance on earth?
The hardest substance that is naturally occurring is a diamond. However, there are harder substances that have been made by scientists in labs.
Is Diamond is the hardest mineral and can it scratch corundum?
no it can't
What is the only mineral that can scratch corundum?
Diamond is the hardest mineral and is the only one that can scratch corundum. but in my opinion corundum will scratch corundum any mineral of the same hardness will scratch the other !
What is corundum oxide?
Corundum is the 2nd hardest natural mineral discovered. For more information click on the related link.
What gemstone is the second hardest?
Corundum. (Sapphire/Ruby/Emery)
Is corundum a mineral or a rock?
It is a Mineral
Is diamond a soft rock?
Well, diamond is a mineral so it isn't any type of rock.Diamond is the hardest mineral on earth and a 10 on the 1-10 MOHZ hardness scale. It is 40-50 times harder than the next hardest rock, corundum which is 9 on the scale. So no, diamond is quite the very opposite of soft, and as previously stated, it is a mineral, not a rock.No, diamond is the hardest rock.
What is the second hardest mineral on the Mohs scale after diamond?
On the Mohs scale of mineral hardness, corundum is listed as a 9, below diamond which has a rating of 10.
What are the three hardest stones or rocks on the planet i know diamond is the hardest what are two and three and where does quartz feature on the list please?
Corundum & samphire
Is corundum harder than diamond?
No. Diamond is the hardest mineral. It measures 10 on the Mohs scale: Corundum measures 9, which is less hard than diamond, as below.
