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Diamond
Diamond is the hardest mineral currently known and is an allotrope of carbon.
Diamond is the mineral that has a hardness of 10 on the Mohs scale. It is the hardest naturally occurring substance.
Diamond is the hardest mineral at Mohs hardness 10, ten being the hardest. There is no natural mineral substitute for processes requiring diamond. Diamond is four times as hard as corundum, the mineral constituting rubies and sapphires. Although diamond is the hardest naturally occurring mineral, it is easily fractured, a characteristic which allowed early jewellery makers to facet this crystal.
Rubies have a hardness of 9 on the Mohs scale of mineral hardness, making them one of the hardest gemstones. This means that rubies are highly resistant to scratches and suitable for everyday wear in jewelry.
Adamantium is a fiction, not a true mineral.
Rubies are a color variant of the mineral corundum, which is an oxide.
The hardest substance in a rock would be the hardest mineral of which the rock is composed.
Diamond is the hardest mineral and is most resistant to being scratched. It is ranked as a 10 on the Mohs scale of mineral hardness, making it the hardest naturally occurring substance.
The hardest substance that is naturally occurring is a diamond. However, there are harder substances that have been made by scientists in labs.
The second hardest mineral is moissanite, which is a naturally occurring mineral made of silicon carbide. The third hardest mineral is corundum, which includes gemstones like sapphires and rubies. Quartz ranks as number seven on the Mohs scale of mineral hardness, making it less hard than diamond, moissanite, and corundum.
That statement is a fact. Diamonds are indeed the hardest naturally occurring substance on Earth, as they score a 10 on the Mohs scale of mineral hardness.