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
China
Africa
Cameroon, Cape Verde, Chad, Djibouti, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Tanzania, Uganda
East Africa
Europa
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
Italy
Alții
antarctica, insulele hawaii
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Depozite în Continente de Vest
America de Nord
Canada, Costa Rica, Panama, USA
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America de Sud
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador
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Depozite în Oceania Continent
Australia
Central Australia, Western Australia
Queensland