It can be scratched by a diamond, corundum, topaz, and quartz.
pyrite can scratch glass only
No.
yes itt can
yes graphite can be scrathced by a nail
Yes. A steel nail has a Mohs hardness greater than that of fluorite.
Yes, hematite can be formed by inorganic processes.
Magnetite belongs to the spinel group of minerals
Yes!!! The allotrope ' yellow flowers of sulphur' is quite soft and can be scratched with a finger nail.
yes it can be scratched by certain things
Yes
Yes.
yes itt can
It would have to be 5.0 because glass has a hardness of 5.5 and an iron nail has the hardness of 4.5
quartz
go seek medical advise
yes graphite can be scrathced by a nail
Yes. A steel nail has a Mohs hardness greater than that of fluorite.
No. Only another diamond can scratch a diamond.
Yes. It is much harder than your fingernail.