common salt vs halite

common salt and halite both are nouns.

Word	Noun	Adjective	Verb	Adverb
common salt	Yes	No	No	No
halite	Yes	No	No	No

As nouns, halite is a hyponym of common salt; that is, halite is a word with a more specific, narrower meaning than common salt:

common salt: a white crystalline solid consisting mainly of sodium chloride (NaCl)
halite: naturally occurring crystalline sodium chloride

Other hyponyms of common salt include rock salt.

common salt (noun)	halite (noun)
white crystalline form of especially sodium chloride used to season and preserve food	naturally occurring crystalline sodium chloride
a white crystalline solid consisting mainly of sodium chloride (NaCl)