Depozite în Continente de Est
Asia
Russia
Bangladesh, China, India, Russia
Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Europa
England, Hungary, Iceland, United Kingdom
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
Alții
antarctica
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Depozite în Continente de Vest
America de Nord
Canada, USA
Canada, Panama, USA
America de Sud
Argentina, Colombia, Ecuador
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, South Australia, Western Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia