1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey
India, Russia
1.1.2 Afrika
Ethiopia, Morocco, South Africa
South Africa
1.1.3 Eropah
France, Germany, Italy, Norway, Scotland
Germany, Greece, Italy, Scotland, Turkey
1.1.4 lain
tanah penggembalaan
tanah penggembalaan, mid-Atlantik ridge
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, Costa Rica, Panama, USA
Canada, USA
1.2.2 Amerika Selatan
Argentina, Brazil, Kolumbia, Ekuador
Bolivia, Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, New Zealand, Queensland
New Zealand, Queensland