1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
China, India
1.1.2 Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
Morocco, Namibia
1.1.3 Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
Austria, Italy, Romania, Spain, Switzerland
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
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, Queensland, Western Australia
New South Wales, Queensland, Yorke Peninsula