1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Japan, Oman
Not Yet Found
1.1.2 Afrika
South Africa
South Africa
1.1.3 Eropah
France, Germany, Italy, Venezuela
Finland, Norway, Portugal
1.1.4 lain
pulau hawaii, mid-Atlantik ridge
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
Not Yet Found