Depozite în Continente de Est
Asia
Afghanistan, Indonesia, Japan, 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
Kenya
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
Europa
Greece, Hungary, Iceland, Italy, Turkey
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
Alții
-
antarctica, insulele hawaii
Depozite în Continente de Vest
America de Nord
Canada, Mexico, USA
Canada, Costa Rica, Panama, USA
America de Sud
Argentina, Chile, Ecuador, Peru
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
Depozite în Oceania Continent
Australia
New Zealand
Central Australia, Western Australia