1 Rezerve
1.1 Depozite în Continente de Est
1.1.1 Asia
Russia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
1.1.2 Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
1.1.3 Europa
England, Hungary, Iceland, United Kingdom
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
1.1.4 Alții
antarctica
nu a fost încă găsite
1.2 Depozite în Continente de Vest
1.2.1 America de Nord
Canada, USA
Canada, Mexico, USA
1.2.2 America de Sud
Argentina, Colombia, Ecuador
Brazil, Chile, Colombia, Venezuela
1.3 Depozite în Oceania Continent
1.3.1 Australia
New South Wales, New Zealand, South Australia, Western Australia
New South Wales, Queensland, Victoria