Assertion: crust's layer | /r/HasProperty | silicate rocks
Facets:
Source sentences:
text: This layer is composed of silicate rocks that are rich in iron and magnesium relative to the overlying crust.
text: This layer is composed of silicate rocks that are rich in iron and magnesium relative to the overlying crust.
text: This layer is composed of silicate rocks that are rich in iron and magnesium relative to the overlying crust.