Depozite în Continente de Est
Asia
China, India
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Africa
Morocco, Namibia
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
Europa
Austria, Italy, Romania, Spain, Switzerland
Bulgaria, England, Germany, Norway, Romania, Switzerland
Alții
-
-
Depozite în Continente de Vest
America de Nord
Mexico, USA
USA
America de Sud
Brazil, Colombia
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru
Depozite în Oceania Continent
Australia
New South Wales, Queensland, Yorke Peninsula
New South Wales, New Zealand, Queensland, South Australia, Western Australia