Unscratchable? I am not sure if that is the kind of word that you are looking for...
Diamond is one of the hardest materials and is difficult to scratch due to its strong covalent bonding structure. Other materials such as tungsten carbide, sapphire, and ceramic are also known for their high scratch resistance.
Yes, real gold can be scratched because it is a relatively soft metal. However, scratches on gold can often be polished out by a jeweler.
Diamond is the hardest known natural material, so it cannot be easily scratched by most substances. However, other diamonds can scratch each other due to the specific atomic arrangement in the crystal lattice.
Something rigid is stiff and not easily bendable or flexible. It does not easily change shape or position.
You can call something that makes something move a "force" or a "mover," while something that causes it to stop can be referred to as a "brake" or a "stopper."
hardness
Because it is soft
hardness
hardness is how easily a mineral can be scratched
The term for this is "hardness".
*what would i call a person who easily gets offended and does something back? i would call that a person who's overreacting.*I would call that person touchy and vengeful.
Hardness, how easily it can be scratched
Hardness
No, this microwave cannot be scratched easily. Even if scratched with sharp object, only the paint will come off.
Gypsum is a mineral commonly found in drywall that is easily scratched due to its low hardness on the Mohs scale of mineral hardness.
Gypsum (number 2 on the Moh's Hardness Scale)
No, because calcite can be scratched off as easily as a copper penny. Would you like to have a diamond that breaks every time you do something active.