1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, Russia
Japan, Oman
1.1.2 Afrika
Not Yet Found
South Africa
1.1.3 Eropah
Austria, Italy, Portugal, United Kingdom
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, Ekuador
belum menemukan
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
Not Yet Found