deposito's in het oosten van continenten
Azië
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Bangladesh, China, India, Russia
Afrika
Uganda
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Europa
Germany, Hungary, Italy, Spain
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
Zuid-Amerika
Bolivia, Brazil
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
deposito's in Oceanië continent
Australië
New South Wales, New Zealand, Queensland, South Australia, Western Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia