deposito's in het oosten van continenten
Azië
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Egypt, Ethiopia, Ghana, South Africa
Europa
Bulgaria, England, Germany, Norway, Romania, Switzerland
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
USA
Canada, Cuba, Jamaica, USA
Zuid-Amerika
Brazil, Chile
Bolivia, Brazil, Colombia, Ecuador, Paraguay
deposito's in Oceanië continent
Australië
New Zealand, Queensland, South Australia, Western Australia
New South Wales, New Zealand, Western Australia