gympsum can scratch diamond
A diamond will scratch anything and everything, including another diamond.
No. Diamond will scratch steel, however,
It would leave a scratch because a diamond is harder than glass; diamond being the hardest material on the Moh's Scale of hardness.
Diamond is the hardest known substance, but one diamond can scratch another diamond. If that was not the case, there would be no way for jewelers to shape diamonds as they do, into faceted jewels, instead of lumpy stones.
Yes. A diamond can scratch hard surfaces, but is not effective in scratching softer surfaces, unless the stone is cracked or broken and has a sharp edge.
No.
no
There is no answer to your question, because anything that will scratch quartz will also scratch gypsum.
Between 2 and 3 because its hard enough gypsum but it can not scratch calcite because calcite is harder
gypsum can
The human fingernail can just scratch gypsum, but is softer than all other minerals.
A diamond can scratch a diamond, but one diamond cannot scratch itself.
Gypsum.
No. Only a diamond can scratch another diamond.
fluorite ,tale ,gypsum
Gypsum
A diamond will scratch anything and everything, including another diamond.