About: http://webisa.webdatacommons.org/323704114

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Diamond is an allotrope of carbon which is metastable at ordinary pressures, having a large activation energy barrier which prevents conversion to graphite, the more stable allotrope at ordinary temperatures and pressures.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es