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, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
1.1.2 Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
Angola, Egypt, Ethiopia, Madagascar, Namibia, Nigeria, South Africa
1.1.3 Eropah
Andorra, Finland, France, Great Britain, Italy, Norway, Portugal, Spain, Sweden
Bulgaria, England, Germany, Norway, Romania, Switzerland
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, Chili, Kolumbia, Ekuador, peru
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, Queensland, South Australia, Tasmania, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia