deposito's in het oosten van continenten
Azië
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
Afrika
Cameroon, East Africa, Tanzania, Western Africa
Egypt, Ethiopia, Ghana, South Africa
Europa
United Kingdom
Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland
anderen
Nog niet gevonden
Groenland
deposito's in het westen van continenten
Noord Amerika
Canada, USA
Canada, Cuba, Jamaica, USA
Zuid-Amerika
Bolivia, Brazil, Colombia, Ecuador
Bolivia, Brazil, Colombia, Ecuador, Paraguay
deposito's in Oceanië continent
Australië
New South Wales, New Zealand, Queensland, Western Australia
New South Wales, New Zealand, Western Australia