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