deposito's in het oosten van continenten
Azië
China, India, Israel, Russia, South Korea, Thailand, Turkey
Bangladesh, China, India, Russia
Afrika
Ethiopia, Morocco, South Africa, Zimbabwe
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Europa
England, Italy, Norway, Scotland, Sweden, United Kingdom
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
anderen
Groenland
Nog niet gevonden
deposito's in het westen van continenten
Noord Amerika
Bahamas, Canada, USA
USA
Zuid-Amerika
Brazil, Colombia, Venezuela
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
deposito's in Oceanië continent
Australië
New Zealand, Queensland, Western Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia