PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The silver is present mainly in galena, tetrahedrite, and other such minerals; the gold is invariably native and occurs in association with pyrite, pyrrhotite, molybdenite, chalcopyrite, and other copper sulfides.
http://www.w3.org/ns/prov#wasQuotedFrom
  • minelinks.com