Depozite în Continente de Est
Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
Russia
Africa
Cameroon, East Africa, Tanzania, Western Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa
Europa
United Kingdom
England, Hungary, Iceland, United Kingdom
Alții
-
antarctica, Groenlanda
Depozite în Continente de Vest
America de Nord
Canada, USA
Canada, Mexico, USA
America de Sud
Bolivia, Brazil, Colombia, Ecuador
Argentina, Colombia, Ecuador
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, Queensland, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia