granite vs pluton

granite and pluton both are nouns.

Word	Noun	Adjective	Verb	Adverb
granite	Yes	No	No	No
pluton	Yes	No	No	No

As nouns, pluton is a hypernym of granite; that is, pluton is a word with a broader meaning than granite:

granite: plutonic igneous rock having visibly crystalline texture; generally composed of feldspar and mica and quartz
pluton: large mass of intrusive igneous rock believed to have solidified deep within the earth

Other hypernyms of granite include batholite, batholith, plutonic rock.

granite (noun)	pluton (noun)
something having the quality of granite (unyielding firmness)	large mass of intrusive igneous rock believed to have solidified deep within the earth
plutonic igneous rock having visibly crystalline texture; generally composed of feldspar and mica and quartz