PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Each deposit contains several different types of ore, varying in both grade and physical properties.Its existing resource totals over 300Mt grading 51% Al2O3, sufficient to support production at current rates for at least 25 years.
http://www.w3.org/ns/prov#wasQuotedFrom
  • mining-technology.com