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