About: http://webisa.webdatacommons.org/175223620

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	Diamonds are the hardest known substances and the least volatile with a melting point of 6,242??F (3,550??C).
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com