Corundum- which can only be scratched by diamond. Diamond cannot be scratched by any other mineral.
Diamond.
Diamond are only scratched by diamonds.
Talc is one such mineral and as such is a reference mineral in the Mohs Hardness Scale.
Talc is the softest mineral and can be scratched by any other mineral.
Magnatite is the mineral that has a nonmatallic luster, is black, and can be scratched by a fingernail.
A diamond is the only material that cannot be scratched by any other than itself.
Diamond are only scratched by diamonds.
Diamond are only scratched by diamonds.
Talc is one such mineral and as such is a reference mineral in the Mohs Hardness Scale.
Diamonds of course. Carbon (C) in its purest, crystalline form. Look it up for more info.
Talc is the softest mineral and can be scratched by any other mineral.
No. A diamond can still be scratched by another diamond.
A diamond. Actually, a diamond can be scratched my other minerals.
potassium feldspar
Magnatite is the mineral that has a nonmatallic luster, is black, and can be scratched by a fingernail.
A diamond is the only material that cannot be scratched by any other than itself.
nickel
Diamonds can only be scratched by other diamonds. Diamond is the hardest natural mineral.