1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Russia
China, India
1.1.2 Afrika
South Africa
Angola, Egypt, Madagascar, Namibia, Nigeria
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
1.1.4 lain
tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Brazil, Kolumbia, venezuela
Argentina, Bolivia, Brazil, Kolumbia, Ekuador
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, Queensland
Central Australia, Queensland, Western Australia