deposito's in het oosten van continenten
Azië
China, India
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
Europa
Germany, Iceland, Ireland, Italy, Spain
Bulgaria, England, Germany, Norway, Romania, Switzerland
deposito's in het westen van continenten
Noord Amerika
Canada, USA
USA
Zuid-Amerika
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, 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