Depozite în Continente de Est
Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
Afghanistan, Indonesia, Japan, Russia
Africa
Cameroon, East Africa, Tanzania, Western Africa
Kenya
Europa
United Kingdom
Greece, Hungary, Iceland, Italy, Turkey
Depozite în Continente de Vest
America de Nord
Canada, USA
Canada, Mexico, USA
America de Sud
Bolivia, Brazil, Colombia, Ecuador
Argentina, Chile, Ecuador, Peru
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, Queensland, Western Australia
New Zealand