1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Japan, Oman
China, India, Indonesia, Japan, North Korea, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Tajikistan, Thailand
1.1.2 Afrika
South Africa
Egypt, Ethiopia, Ghana, South Africa, Western Africa
1.1.3 Eropah
France, Germany, Italy, Venezuela
Austria, England, Finland, France, Germany, Greece, Spain, Sweden, Switzerland, 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
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
Central Australia, New Zealand, Queensland