1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Not Yet Found
India, Russia
1.1.2 Afrika
Not Yet Found
South Africa
1.1.3 Eropah
United Kingdom
Germany, Greece, Italy, Scotland, Turkey
1.1.4 lain
belum menemukan
tanah penggembalaan, mid-Atlantik ridge
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
belum menemukan
Bolivia, Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
New Zealand, Queensland