deposito's in het oosten van continenten
Azië
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam
Afrika
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Europa
England, France, Germany, Spain, United Kingdom
Andorra, Finland, France, Germany, Great Britain, Italy, Norway, Portugal, Spain, Sweden
anderen
Nog niet gevonden
Groenland
deposito's in het westen van continenten
Noord Amerika
Canada, USA
Canada, USA
Zuid-Amerika
Colombia
Brazil, Chile, Colombia, Uruguay, Venezuela
deposito's in Oceanië continent
Australië
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula
New Zealand, Queensland, South Australia, Tasmania, Western Australia