lechatelierite vs vitreous silica

lechatelierite and vitreous silica both are nouns.

Word	Noun	Adjective	Verb	Adverb
lechatelierite	Yes	No	No	No
vitreous silica	Yes	No	No	No

As nouns, lechatelierite and vitreous silica are synonyms defined as:

lechatelierite and vitreous silica: colorless glass made of almost pure silica

Other synonyms of lechatelierite include crystal, quartz, quartz glass.

lechatelierite (noun)	vitreous silica (noun)
colorless glass made of almost pure silica	colorless glass made of almost pure silica