1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Russia
Not Yet Found
1.1.2 Afrika
South Africa
Western Africa
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
Austria, Belarus, Romania, Switzerland, 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
Brazil, Kolumbia
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, Queensland
New Zealand, Western Australia