sylvanite vs graphic tellurium

sylvanite and graphic tellurium both are nouns.

Word	Noun	Adjective	Verb	Adverb
sylvanite	Yes	No	No	No
graphic tellurium	Yes	No	No	No

As nouns, sylvanite and graphic tellurium are synonyms defined as:

sylvanite and graphic tellurium: a silver-white mineral consisting of silver gold telluride; a source of gold in Australia and America

sylvanite (noun)	graphic tellurium (noun)
a silver-white mineral consisting of silver gold telluride; a source of gold in Australia and America	a silver-white mineral consisting of silver gold telluride; a source of gold in Australia and America