lazuline vs cerulean

lazuline and cerulean both are nouns.

Word	Noun	Adjective	Verb	Adverb
lazuline	Yes	No	No	No
cerulean	Yes	Yes	No	No

As nouns, lazuline and cerulean are synonyms defined as:

Other synonyms of lazuline include azure, sapphire, sky-blue.

lazuline (noun)	cerulean (noun)
a light shade of blue	a light shade of blue

lazuline (adjective)	cerulean (adjective)
	of a deep somewhat purplish blue color similar to that of a clear October sky