deposito's in het oosten van continenten
Azië
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Afrika
Kenya, Morocco, South Africa, Tanzania
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
Europa
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
Bulgaria, England, Germany, Norway, Romania, Switzerland
anderen
Groenland, Mid-Atlantische Rug
Nog niet gevonden
deposito's in het westen van continenten
Noord Amerika
Canada, Mexico, USA
USA
Zuid-Amerika
Bolivia, Brazil
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru
deposito's in Oceanië continent
Australië
New South Wales, Queensland, South Australia, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia