Assertion: magnesium carbonate | /r/AtLocation | nature
Facets:
value: as a mineral
type: MANNER
value: in most limestones
type: LOCATION
value: as a manufactured substance
type: MANNER
Source sentences:
text: It occurs in nature or as a manufactured substance.
text: In nature, magnesium carbonate occurs in the minerals magnesite and dolomite and in most limestones.
text: Magnesium carbonate, MgCO 3 , is a white solid that occurs in nature as a mineral.
text: Magnesium carbonate, MgCO 3 , is a white solid that occurs in nature as a mineral.