deposito's in het oosten van continenten
Azië
Bangladesh, China, India, Israel, Jordan, Russia, Syria, Thailand, Turkey
Not Yet Found
Afrika
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Uganda
Europa
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Sweden, Switzerland
Germany, Hungary, Italy, Spain
anderen
Groenland, Nog niet gevonden
Groenland, Mid-Atlantische Rug
deposito's in het westen van continenten
Noord Amerika
Canada, USA
USA
Zuid-Amerika
Bolivia, Brazil, Chile, Colombia, Ecuador, Peru, Venezuela
Bolivia, Brazil
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