deposito's in het oosten van continenten
Azië
India
-
Afrika
South Africa, Tanzania
-
Europa
Germany, Greece, Italy, Scotland, Turkey
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic
anderen
Antarctica, Groenland
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deposito's in het westen van continenten
Noord Amerika
Canada, USA
Canada
Zuid-Amerika
Argentina, Brazil, Colombia, Venezuela
Bolivia, Colombia
deposito's in Oceanië continent
Australië
Central Australia, New Zealand, Queensland, Western Australia
Central Australia, South Australia, Western Australia