About: http://webisa.webdatacommons.org/14003770

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	The term refractory ores is used to describe a family of ores bearing precious metals where the precious metals such as gold and silver tend to be locked in various host minerals, primarily sulfide minerals and other rocks.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es