kaolin vs china stone

kaolin and china stone both are nouns.

Word	Noun	Adjective	Verb	Adverb
kaolin	Yes	No	No	No
china stone	Yes	No	No	No

As nouns, kaolin and china stone are synonyms defined as:

kaolin and china stone: a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)

Other synonyms of kaolin include china clay, kaoline, porcelain clay, terra alba.

kaolin (noun)	china stone (noun)
a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)	a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)