1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
1.1.2 Afrika
South Africa
East Africa, Ethiopia, Madagascar, Morocco, Mozambique
1.1.3 Eropah
France, Germany, Italy, Venezuela
Albania, Romania, Scotland, United Kingdom
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
belum menemukan
Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
Central Australia, Western Australia