1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Russia
Russia, South Korea
1.1.2 Afrika
South Africa
Western Africa
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
United Kingdom
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
Central Australia, Western Australia