cerussite vs white lead ore

cerussite and white lead ore both are nouns.

Word	Noun	Adjective	Verb	Adverb
cerussite	Yes	No	No	No
white lead ore	Yes	No	No	No

As nouns, cerussite and white lead ore are synonyms defined as:

cerussite and white lead ore: a mineral consisting of lead carbonate that is an important source of lead

cerussite (noun)	white lead ore (noun)
a mineral consisting of lead carbonate that is an important source of lead	a mineral consisting of lead carbonate that is an important source of lead