deposito's in het oosten van continenten
Azië
Japan
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
Rwanda, Tanzania
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
Europa
Not Yet Found
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
anderen
Hawaï-eilanden
Antarctica, Hawaï-eilanden
deposito's in het westen van continenten
Noord Amerika
Canada, USA
Canada, Costa Rica, Panama, USA
Zuid-Amerika
Colombia
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
deposito's in Oceanië continent
Australië
Not Yet Found
Central Australia, Western Australia