1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Japan, Oman
Afghanistan, Indonesia, Japan, Russia
1.1.2 Afrika
1.1.3 Eropah
France, Germany, Italy, Venezuela
Greece, Hungary, Iceland, Italy, Turkey
1.1.4 lain
pulau hawaii, mid-Atlantik ridge
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, USA
Canada, Mexico, USA
1.2.2 Amerika Selatan
belum menemukan
Argentina, Chili, Ekuador, peru
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
New Zealand