1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey
India
1.1.2 Afrika
Ethiopia, Morocco, South Africa
East Africa, Western Africa
1.1.3 Eropah
France, Germany, Italy, Norway, Scotland
England, Romania, Scotland
1.1.4 lain
tanah penggembalaan
belum menemukan
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
belum menemukan
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, New Zealand, Queensland
Central Australia, Western Australia