deposito's in het oosten van continenten
Azië
India
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
East Africa, Ethiopia, Madagascar, Morocco, Mozambique
Cameroon, Cape Verde, Chad, Djibouti, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Tanzania, Uganda
Europa
Albania, Romania, Scotland, United Kingdom
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
anderen
Nog niet gevonden
Antarctica, Hawaï-eilanden
deposito's in het westen van continenten
Noord Amerika
USA
Canada, Costa Rica, Panama, USA
Zuid-Amerika
Brazil, Colombia, Venezuela
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador
deposito's in Oceanië continent
Australië
Central Australia, Western Australia
Central Australia, Western Australia