deposito's in het oosten van continenten
Azië
India, Russia
Bangladesh, China, India, Russia
Afrika
South Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Europa
Germany, Greece, Italy, Scotland, Turkey
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
anderen
Groenland, Mid-Atlantische Rug
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deposito's in het westen van continenten
Noord Amerika
Canada, USA
USA
Zuid-Amerika
Bolivia, Brazil, Colombia, Venezuela
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
deposito's in Oceanië continent
Australië
New Zealand, Queensland
New South Wales, New Zealand, Queensland, Victoria, Western Australia