1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Japan, Oman
Bangladesh, China, India, Russia
1.1.2 Afrika
South Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
1.1.3 Eropah
France, Germany, Italy, Venezuela
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
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
Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
New South Wales, New Zealand, Queensland, Victoria, Western Australia