deposito's in het oosten van continenten
  
  
Azië
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
  
India, Indonesia, Japan, Nepal, South Korea
  
Afrika
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
  
Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania
  
Europa
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
  
Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom
  
anderen
Antarctica, Hawaï-eilanden
  
Nog niet gevonden
  
deposito's in het westen van continenten
  
  
Noord Amerika
Canada, Costa Rica, Panama, USA
  
Mexico, USA
  
Zuid-Amerika
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
  
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
  
deposito's in Oceanië continent
  
  
Australië
Central Australia, Western Australia
  
New South Wales, New Zealand, Western Australia