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Yes. This crystalline form of aluminum ranks as 9 on the Mohs scale: Diamond ranks 10, which is hardest of the hardness rankings.

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11y ago

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What mineral can only be scratched by one mineral?

Diamond is the hardest mineral and can only be scratched by another diamond.


What is pyrite scratch?

It can be scratched by a diamond, corundum, topaz, and quartz.


What unknown mineral is found to scratch apatite and to be scratched by corundum?

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.


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.


Which mineral has the same hardness as corundum?

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.


Can hematite be scratched by a nail?

It can be scratched by a diamond, corundum, topaz, and quartz.


What mineral can be scratched by diamond?

Diamond are only scratched by diamonds.


What mineral can corundum scratch?

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.


Will surface of a diamond be scratched?

Yes, perhaps, if scratched by another diamond.


Can corundum be scratched by a nail?

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.


Which mineral can scratch topaz?

Corundum and Diamond.


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 !