Hardness, which is the degree of resistance to being scratched by something, is a valuable property in identifying minerals as well as other substances.
(Hardness; is; the degree of resistance to being scratched by something) (Hardness; is; a valuable property in identifying minerals as well as other substances)
Hardness Hardness
is is
the degree of resistance to being scratched by something
a valuable property in identifying minerals as well as other substances