deposito's in het oosten van continenten
Azië
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
Afghanistan, Indonesia, Japan, Russia
Afrika
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
Kenya
Europa
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
Greece, Hungary, Iceland, Italy, Turkey
anderen
Antarctica, Hawaï-eilanden
Nog niet gevonden
deposito's in het westen van continenten
Noord Amerika
Canada, Costa Rica, Panama, USA
Canada, Mexico, USA
Zuid-Amerika
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
Argentina, Chile, Ecuador, Peru
deposito's in Oceanië continent
Australië
Central Australia, Western Australia
New Zealand