1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam
China, India
1.1.2 Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Angola, Egypt, Madagascar, Namibia, Nigeria
1.1.3 Eropah
Andorra, Finland, France, Great Britain, Italy, Norway, Portugal, Spain, Sweden
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, Chili, Kolumbia, uruguay, venezuela
Argentina, Bolivia, Brazil, Kolumbia, Ekuador
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, Queensland, South Australia, Tasmania, Western Australia
Central Australia, Queensland, Western Australia