deposito's in het oosten van continenten
Azië
Russia
China, India, Iran, Iraq, Kazakhstan, Kyrgyzstan, Mongolia, Russia
Afrika
Angola, Botswana, Cameroon, Ethiopia, South Africa
Cameroon, Ethiopia, Ghana, Kenya, Madagascar, Morocco, Mozambique, Namibia, Nigeria, Tanzania, Togo
Europa
England, Hungary, Iceland, United Kingdom
Albania, Austria, Bosnia and Herzegovina, Finland, France, Georgia, Germany, Hungary, Italy, Kosovo, Monaco, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, Sweden, Switzerland, Ukraine, United Kingdom
anderen
Antarctica, Groenland
Nog niet gevonden
deposito's in het westen van continenten
Noord Amerika
Canada, Mexico, USA
Canada, Costa Rica, Cuba, Mexico, Panama, USA
Zuid-Amerika
Argentina, Colombia, Ecuador
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru, Venezuela
deposito's in Oceanië continent
Australië
New South Wales, New Zealand, Queensland, South Australia, Western Australia
New South Wales, New Zealand, Queensland, Victoria