Yes. This crystalline form of aluminum ranks as 9 on the Mohs scale: Diamond ranks 10, which is hardest of the hardness rankings.
Diamond is the hardest mineral and can only be scratched by another diamond.
Corundum can scratch all minerals except diamond, making it the second hardest mineral on the Mohs scale with a hardness of 9. Diamond, with a hardness of 10, is the only mineral that can scratch corundum.
The mineral that can only be scratched by diamond is diamond itself. Diamond is the hardest known natural mineral, scoring 10 on the Mohs scale of mineral hardness.
Diamond is the most resistant to being scratched as it is the hardest mineral on the Mohs scale with a rating of 10.
Corundum typically has a smooth and hard texture. It is a naturally occurring crystalline form of aluminum oxide and is known for its hardness, which is second only to diamond on the Mohs scale.
Diamond is the hardest mineral and can only be scratched by another diamond.
It can be scratched by a diamond, corundum, topaz, and quartz.
The unknown mineral would be topaz. Topaz lies between apatite and corundum on the Mohs scale, making it capable of scratching apatite and being scratched by corundum.
No. Diamond is the hardest mineral. It measures 10 on the Mohs scale: Corundum measures 9, which is less hard than diamond, as below.
Diamond is the only mineral that has the same hardness as corundum, which is the second hardest natural mineral on the Mohs scale after diamond. Both corundum and diamond have a hardness of 9 on the Mohs scale.
It can be scratched by a diamond, corundum, topaz, and quartz.
Diamond are only scratched by diamonds.
Corundum can scratch all minerals except diamond, making it the second hardest mineral on the Mohs scale with a hardness of 9. Diamond, with a hardness of 10, is the only mineral that can scratch corundum.
Yes, perhaps, if scratched by another diamond.
No, corundum is a very hard mineral, scoring a 9 on the Mohs scale of hardness. A fingernail typically ranks around 2.5 on the scale, so it would not be able to scratch corundum.
Corundum and Diamond.
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 !