You can tell what Topaz can scratch by looking at the Moh's Scale of Hardness. It looks at ten well known, easily available minerals, and arranged them in order of their "scratch hardness". If a specimen to be tested can be scratched by a known mineral from the list, it is softer than that mineral. If it in turn will scratch another known mineral, it is harder than that mineral. Topaz is ranked an 8 and therefore can scratch everything lower than an 8. This includes quartz, feldspar, apatite, calcite, gypsum and talc.
diamond's hardness is a factor of 10. So this is the highest hardness, no mineral has this hardness! You can't scratch a 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.
Diamonds can only be scratched by other diamonds. Diamond is the hardest natural mineral.
Diamond is the hardest mineral that can scratch a steel knife or window glass.
A diamond is the only material that cannot be scratched by any other than itself.
A diamond can scratch a diamond, but one diamond cannot scratch itself.
No. Only a diamond can scratch another diamond.
Nope! A diamond is the hardest substance on earth so only a diamond can scratch a diamond!
Yes, in fact, it is the only way to scratch a diamond.
Yes: not a good use for a diamond, but yes, a diamond will scratch a nail.
Diamond is harder than steel: you can scratch steel with a diamond, but steel will not scratch a diamond.
noNo other way around
Diamond will scratch everything, including diamond.
Diamond
A diamond can only be scratched by another diamond due to its hardness. No other material is hard enough to scratch a diamond.
The field test for diamond is 'extreme hardness'. If you believe that you've found a diamond stone, you can take it to a jeweler, who will apply a probe and verify your find as a diamond stone, or not.
No, gypsum cannot scratch diamond. Diamond is the hardest mineral on the Mohs scale with a rating of 10, while gypsum is much softer with a rating of 2, which means diamond is able to scratch gypsum but not the other way around.