1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Russia
Japan, Turkey
1.1.2 Afrika
South Africa
Egypt, Ethiopia, South Africa
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
France, Greece, Iceland
1.1.4 lain
tanah penggembalaan, mid-Atlantik ridge
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Bolivia, Brazil, Kolumbia, venezuela
belum menemukan
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, Queensland
New Zealand