Depozite în Continente de Est
Asia
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China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
Africa
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Kenya, Morocco, South Africa, Tanzania
Europa
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
Alții
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Groenlanda, Dorsalei-atlantica
Depozite în Continente de Vest
America de Nord
Canada
Canada, Mexico, USA
America de Sud
Bolivia, Colombia
Bolivia, Brazil
Depozite în Oceania Continent
Australia
Central Australia, South Australia, Western Australia
New South Wales, Queensland, South Australia, Western Australia