gadolinite vs ytterbite

gadolinite and ytterbite both are nouns.

Word	Noun	Adjective	Verb	Adverb
gadolinite	Yes	No	No	No
ytterbite	Yes	No	No	No

As nouns, gadolinite and ytterbite are synonyms defined as:

gadolinite and ytterbite: a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium

gadolinite (noun)	ytterbite (noun)
a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium	a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium