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, Russia, Saudi Arabia, South Korea, Sri Lanka
1.1.2 Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
South Africa, Western Africa
1.1.3 Eropah
Andorra, Finland, France, Great Britain, Italy, Norway, Portugal, Spain, Sweden
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
Brazil, Kolumbia, Paraguai
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, Queensland, South Australia, Tasmania, Western Australia
Central Australia, Western Australia