If the nail is made of metal alloy with a Mohs hardness of 2.5-3 or greater, and the gold is pure, yes.
Gold is a very soft metal and can only scatch substances softer than itself, such minerals as gypsum and talc that are soft enough to be scratched with a fingernail.
Gold has a hardness of 2.5 but a piece of copper has a hardness of 3. Steel being around 5.4-5.6
no
Quartz agate would scratch glass. Glass would not scratch quartz agate.
yes.
There are many different kinds of glass, with different hardnesses, but for the most part the hardness of quartz can be taken as a maximum value. Topaz will in fact scratch quartz, so it should scratch nearly any kind of glass.
Most rocks would.
yes
Yes, glass can scratch glass. The hardness of the material determines if it will cause a scratch, with harder materials like diamonds being able to scratch glass. It is best to avoid rubbing glass objects against each other to prevent scratches.
Exacto knives can scratch glass, yes, but not with the first strike.
will 0000 rock wool scratch windsheild glass
Any mineral with roughly a hardness of 6 or more on the Mohs scale of mineral hardness could scratch glass, which is roughly 5.5 on the Mohs scale. Some minerals that could scratch glass would be quartz, topaz, corundum, and diamond.
No
no
no
A few minerals that do not scratch glass come to mind . . . talc, asbestos, mica, for instance.
Someone can find information about glass scratch remover on websites dedicated to glass scratch remover such as Glasweld, GtGlass, or other DIY repair websites.
Quartz agate would scratch glass. Glass would not scratch quartz agate.
Glass can scratch apatite but not feldspar.