Depozite în Continente de Est
Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Africa
Cameroon, East Africa, Tanzania, Western Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Europa
United Kingdom
Bulgaria, England, Germany, Norway, Romania, Switzerland
Alții
-
-
Depozite în Continente de Vest
America de Nord
Canada, USA
USA
America de Sud
Bolivia, Brazil, Colombia, Ecuador
Brazil, Chile
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, Queensland, Western Australia
New Zealand, Queensland, South Australia, Western Australia