sylvite vs sylvine

sylvite and sylvine both are nouns.

Word	Noun	Adjective	Verb	Adverb
sylvite	Yes	No	No	No
sylvine	Yes	No	No	No

As nouns, sylvite and sylvine are synonyms defined as:

sylvite and sylvine: a mineral consisting of native potassium chloride; an important ore of potassium that is found in sedimentary beds

sylvite (noun)	sylvine (noun)
a mineral consisting of native potassium chloride; an important ore of potassium that is found in sedimentary beds	a mineral consisting of native potassium chloride; an important ore of potassium that is found in sedimentary beds