About: http://webisa.webdatacommons.org/244932444

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	Natural abundance Copper metal does occur naturally, but by far the greatest source is in minerals such as chalcopyrite and bornite.
http://www.w3.org/ns/prov#wasQuotedFrom	rsc.org