1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Not Yet Found
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
1.1.2 Afrika
Ethiopia, Ghana, Western Africa
South Africa, Western Africa
1.1.3 Eropah
1.1.4 lain
belum menemukan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Bolivia, uruguay
Brazil, Kolumbia, Paraguai
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, South Australia, Western Australia
Central Australia, Western Australia