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