deposito's in het oosten van continenten
Azië
Bangladesh, China, India, Israel, Jordan, Russia, Syria, Thailand, Turkey
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
Europa
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Sweden, Switzerland
Bulgaria, England, Germany, Norway, Romania, Switzerland
anderen
Groenland, Nog niet gevonden
Nog niet gevonden
deposito's in het westen van continenten
Noord Amerika
Canada, USA
USA
Zuid-Amerika
Bolivia, Brazil, Chile, Colombia, Ecuador, Peru, Venezuela
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru
deposito's in Oceanië continent
Australië
New South Wales, New Zealand, Queensland, Victoria, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia