Assertion: graphite | /r/HasProperty | formed
Facets:
value: from coal
type: OTHER
value: from carbon atoms layers
type: OTHER
value: usually
type: DEGREE
Source sentences:
text: Graphite can be formed from coal put under high heat and pressure.
text: It is usually formed when carbon is subjected to high temperature and pressure in the earth’s crust.
text: Graphite can be formed from coal put under high heat and pressure.
text: A probable explanation: graphite is formed from carbon atoms layers; in these layers electrons are delocalized and can move freely.