Depozite în Continente de Est
Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
-
Africa
Cameroon, East Africa, Tanzania, Western Africa
-
Europa
United Kingdom
Bulgaria, England, Germany, Norway, Romania, Switzerland
Depozite în Continente de Vest
America de Nord
Canada, USA
USA
America de Sud
Bolivia, Brazil, Colombia, Ecuador
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, Queensland, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia