deposito's in het oosten van continenten
Azië
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
Afrika
South Africa, Western Africa
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
Europa
-
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
anderen
-
Antarctica, Hawaï-eilanden
deposito's in het westen van continenten
Noord Amerika
Canada, USA
Canada, Costa Rica, Panama, USA
Zuid-Amerika
-
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
deposito's in Oceanië continent
Australië
Central Australia, Western Australia
Central Australia, Western Australia