Depozite în Continente de Est
Asia
India
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
Africa
South Africa, Tanzania
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
Europa
Germany, Greece, Italy, Scotland, Turkey
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
Alții
antarctica, Groenlanda
nu a fost încă găsite
Depozite în Continente de Vest
America de Nord
Canada, USA
Canada, Mexico, USA
America de Sud
Argentina, Brazil, Colombia, Venezuela
Brazil, Chile, Colombia, Venezuela
Depozite în Oceania Continent
Australia
Central Australia, New Zealand, Queensland, Western Australia
New South Wales, Queensland, Victoria