1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
China, India
1.1.2 Afrika
Egypt, Ethiopia, Ghana, South Africa
Morocco, Namibia
1.1.3 Eropah
Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland
Austria, Italy, Romania, Spain, Switzerland
1.1.4 lain
tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, Cuba, Jamaica, USA
Mexico, USA
1.2.2 Amerika Selatan
Bolivia, Brazil, Kolumbia, Ekuador, Paraguai
Brazil, Kolumbia
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Western Australia
New South Wales, Queensland, Yorke Peninsula