1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Japan, Oman
China, India, Israel, Russia, South Korea, Thailand, Turkey
1.1.2 Afrika
South Africa
Ethiopia, Morocco, South Africa, Zimbabwe
1.1.3 Eropah
France, Germany, Italy, Venezuela
England, Italy, Norway, Scotland, Sweden, United Kingdom
1.1.4 lain
pulau hawaii, mid-Atlantik ridge
tanah penggembalaan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, USA
Bahamas, Canada, USA
1.2.2 Amerika Selatan
belum menemukan
Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
New Zealand, Queensland, Western Australia