1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
1.1.2 Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
South Africa, Western Africa
1.1.3 Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
United Kingdom
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, Brazil, Kolumbia, Ekuador
Brazil, Kolumbia, Paraguai
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, Queensland, Western Australia
Central Australia, Western Australia