deposito's in het oosten van continenten
Azië
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
India
Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
East Africa, Ethiopia, Madagascar, Morocco, Mozambique
Europa
Bulgaria, England, Germany, Norway, Romania, Switzerland
Albania, Romania, Scotland, United Kingdom
deposito's in het westen van continenten
Zuid-Amerika
Brazil, Chile
Brazil, Colombia, Venezuela
deposito's in Oceanië continent
Australië
New Zealand, Queensland, South Australia, Western Australia
Central Australia, Western Australia