Depozite în Continente de Est
  
  
Asia
Bangladesh, China, India, Israel, Jordan, Russia, Syria, Thailand, Turkey
  
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
  
Africa
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
  
Alții
Groenlanda, nu a fost încă găsite
  
Groenlanda
  
Depozite în Continente de Vest
  
  
America de Nord
Canada, USA
  
Canada, Cuba, Jamaica, USA
  
America de Sud
Bolivia, Brazil, Chile, Colombia, Ecuador, Peru, Venezuela
  
Bolivia, Brazil, Colombia, Ecuador, Paraguay
  
Depozite în Oceania Continent
  
  
Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
  
New South Wales, New Zealand, Western Australia