tin pyrites vs stannite

tin pyrites and stannite both are nouns.

Word	Noun	Adjective	Verb	Adverb
tin pyrites	Yes	No	No	No
stannite	Yes	No	No	No

As nouns, tin pyrites and stannite are synonyms defined as:

tin pyrites and stannite: a dark grey mineral with a metallic luster that is a source of tin

tin pyrites (noun)	stannite (noun)
a dark grey mineral with a metallic luster that is a source of tin	a dark grey mineral with a metallic luster that is a source of tin