deposito's in het oosten van continenten
Azië
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
Russia
Afrika
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
Angola, Botswana, Cameroon, Ethiopia, South Africa
Europa
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
England, Hungary, Iceland, United Kingdom
anderen
Nog niet gevonden
Antarctica, Groenland
deposito's in het westen van continenten
Noord Amerika
Canada, Mexico, USA
Canada, Mexico, USA
Zuid-Amerika
Brazil, Chile, Colombia, Venezuela
Argentina, Colombia, Ecuador
deposito's in Oceanië continent
Australië
New South Wales, Queensland, Victoria
New South Wales, New Zealand, Queensland, South Australia, Western Australia