Depozite în Continente de Est
Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Russia
Africa
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa
Europa
Bulgaria, England, Germany, Norway, Romania, Switzerland
England, Hungary, Iceland, United Kingdom
Alții
-
antarctica, Groenlanda
Depozite în Continente de Vest
America de Nord
USA
Canada, Mexico, USA
America de Sud
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru
Argentina, Colombia, Ecuador
Depozite în Oceania Continent
Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia