deposito's in het oosten van continenten
Azië
China, India, Israel, Russia, South Korea, Thailand, Turkey
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Afrika
Ethiopia, Morocco, South Africa, Zimbabwe
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
Europa
England, Italy, Norway, Scotland, Sweden, United Kingdom
Bulgaria, England, Germany, Norway, Romania, Switzerland
anderen
Groenland
Nog niet gevonden
deposito's in het westen van continenten
Noord Amerika
Bahamas, Canada, USA
USA
Zuid-Amerika
Brazil, Colombia, Venezuela
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru
deposito's in Oceanië continent
Australië
New Zealand, Queensland, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia