1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Not Yet Found
Japan, Oman
1.1.2 Afrika
Not Yet Found
South Africa
1.1.3 Eropah
France, Greece, Romania, Scotland, Spain
France, Germany, Italy, Venezuela
1.1.4 lain
belum menemukan
pulau hawaii, mid-Atlantik ridge
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
belum menemukan
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, South Australia, Western Australia
Not Yet Found