native sulfur vs brimstone

native sulfur and brimstone both are nouns.

Word	Noun	Adjective	Verb	Adverb
native sulfur	Yes	No	No	No
brimstone	Yes	No	No	No

As nouns, native sulfur and brimstone are synonyms defined as:

Other synonyms of native sulfur include native sulphur.

native sulfur (noun)	brimstone (noun)
an old name for sulfur	an old name for sulfur