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