Assertion: magma's silica content | /r/HasProperty | low
Facets:
value: unusually
type: DEGREE
value: relatively
type: DEGREE
Source sentences:
text: Mafic magma has relatively low silica content, roughly 50%, and higher contents in iron and magnesium.
text: Nyiragongo is very dangerous because its magma has an unusually low silica content, making it quite fluid.