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