1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
1.1.2 Afrika
Morocco, Namibia
South Africa, Tanzania
1.1.3 Eropah
Austria, Italy, Romania, Spain, Switzerland
Germany, Greece, Italy, Scotland, Turkey
1.1.4 lain
belum menemukan
antarctica, tanah penggembalaan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Brazil, Kolumbia
Argentina, Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, Queensland, Yorke Peninsula
Central Australia, New Zealand, Queensland, Western Australia