chert vs silicon oxide

chert and silicon oxide both are nouns.

Word	Noun	Adjective	Verb	Adverb
chert	Yes	No	No	No
silicon oxide	Yes	No	No	No

As nouns, silicon oxide is a hypernym of chert; that is, silicon oxide is a word with a broader meaning than chert:

chert: variety of silica containing microcrystalline quartz
silicon oxide: a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite

Other hypernyms of chert include silica, silicon dioxide.

chert (noun)	silicon oxide (noun)
variety of silica containing microcrystalline quartz	a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite