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