Depozite în Continente de Est
Asia
China, Russia
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
Africa
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Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
Europa
Austria, Italy, Portugal, United Kingdom
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
Alții
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antarctica, insulele hawaii
Depozite în Continente de Vest
America de Nord
Canada, USA
Canada, Costa Rica, Panama, USA
America de Sud
Argentina, Bolivia, Ecuador
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
Depozite în Oceania Continent
Australia
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Central Australia, Western Australia