PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Tanzania has substantial reserves of minerals including copper, nickel, iron, coal, uranium, diamonds and a wide variety of gemstones such as ruby, sapphire, emerald, alexandrite and Tanzanite (only found and mined in Tanzania).
http://www.w3.org/ns/prov#wasQuotedFrom
  • rubycreekresources.com