Depozite în Continente de Est
Asia
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China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Africa
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Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
Europa
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic
Bulgaria, England, Germany, Norway, Romania, Switzerland
Depozite în Continente de Vest
America de Nord
Canada
USA
America de Sud
Bolivia, Colombia
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru
Depozite în Oceania Continent
Australia
Central Australia, South Australia, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia