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
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Europa
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic
deposito's in het westen van continenten
Noord Amerika
Canada, USA
Canada, USA
Zuid-Amerika
Argentina, Bolivia, Brazil, Colombia, Ecuador
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deposito's in Oceanië continent
Australië
Central Australia, Queensland, Western Australia
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