1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India
China, India, Russia, Saudi Arabia, South Korea
1.1.2 Afrika
South Africa, Tanzania
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
England, Finland, France, Spain, United Kingdom
1.1.4 lain
antarctica, tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Brazil, Kolumbia, venezuela
Argentina, Kolumbia
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, New Zealand, Queensland, Western Australia
Central Australia, Western Australia