1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
1.1.2 Afrika
South Africa, Tanzania
South Africa
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
Germany, Greece, Italy, Scotland, Turkey
1.1.4 lain
antarctica, tanah penggembalaan
tanah penggembalaan, mid-Atlantik ridge
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Brazil, Kolumbia, venezuela
Bolivia, Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, New Zealand, Queensland, Western Australia
New Zealand, Queensland