deposito's in het oosten van continenten
Azië
Russia, Turkey
Russia
Afrika
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda
Angola, Botswana, Cameroon, Ethiopia, South Africa
Europa
Germany, Greece, Iceland, Norway, Poland
England, Hungary, Iceland, United Kingdom
anderen
-
Antarctica, Groenland
deposito's in het westen van continenten
Noord Amerika
Canada, USA
Canada, Mexico, USA
Zuid-Amerika
Brazil
Argentina, Colombia, Ecuador
deposito's in Oceanië continent
Australië
South Australia, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia