deposito's in het oosten van continenten
  
  
Azië
Russia
  
China, India, Iran, Iraq, Kazakhstan, Kyrgyzstan, Mongolia, Russia
  
Afrika
Angola, Botswana, Cameroon, Ethiopia, South Africa
  
Cameroon, Ethiopia, Ghana, Kenya, Madagascar, Morocco, Mozambique, Namibia, Nigeria, Tanzania, Togo
  
Europa
England, Hungary, Iceland, United Kingdom
  
Albania, Austria, Bosnia and Herzegovina, Finland, France, Georgia, Germany, Hungary, Italy, Kosovo, Monaco, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, Switzerland, Ukraine, United Kingdom
  
anderen
Antarctica, Groenland
  
Nog niet gevonden
  
deposito's in het westen van continenten
  
  
Noord Amerika
Canada, Mexico, USA
  
Canada, Costa Rica, Cuba, Mexico, Panama, USA
  
Zuid-Amerika
Argentina, Colombia, Ecuador
  
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru, Venezuela
  
deposito's in Oceanië continent
  
  
Australië
New South Wales, New Zealand, Queensland, South Australia, Western Australia
  
New South Wales, New Zealand, Queensland, Victoria