deposito's in het oosten van continenten
  
  
Azië
Bangladesh, China, India, Israel, Jordan, Russia, Syria, Thailand, Turkey
  
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
  
Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
  
Egypt, Ethiopia, Ghana, South Africa
  
Europa
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Sweden, Switzerland
  
Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland
  
anderen
Groenland, Nog niet gevonden
  
Groenland
  
deposito's in het westen van continenten
  
  
Noord Amerika
Canada, USA
  
Canada, Cuba, Jamaica, USA
  
Zuid-Amerika
Bolivia, Brazil, Chile, Colombia, Ecuador, Peru, Venezuela
  
Bolivia, Brazil, Colombia, Ecuador, Paraguay
  
deposito's in Oceanië continent
  
  
Australië
New South Wales, New Zealand, Queensland, Victoria, Western Australia
  
New South Wales, New Zealand, Western Australia