Assertion: magnesium carbonate | /r/CapableOf | occur as dolomite
Facets:
value: in most limestones
type: LOCATION
value: naturally
type: MANNER
Source sentences:
text: Magnesium carbonate is a white, powdery compound that occurs naturally as dolomite and magnesite and is widely marketed as a health supplement.
text: In nature, magnesium carbonate occurs in the minerals magnesite and dolomite and in most limestones.