Assertion: aluminum | /r/PartOf | about 8% of the earth's crust
Facets:
value: after oxygen
type: OTHER
value: after silicon
type: OTHER
value: by mass
type: OTHER
Source sentences:
text: By mass, aluminium makes up about 8% of the Earth's crust, where it is the third most abundant element (after oxygen and silicon) and also the most abundant metal.