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