Assertion: mercury | /r/HasProperty | obtained
Facets:
value: by heating the cinnabar ore
type: MANNER
value: from the mineral cinnabar
type: LOCATION
value: primarily
type: DEGREE
Source sentences:
text: Mercury is not usually found free in nature and is primarily obtained from the mineral cinnabar (HgS).
text: Mercury can be obtained from cinnabar by heating the cinnabar ore in a current of air and condensing the mercury vapour formed.