1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
1.1.2 Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
South Africa, Tanzania
1.1.3 Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
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
Argentina, Bolivia, Brazil, Kolumbia, Ekuador
Argentina, Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, Queensland, Western Australia
Central Australia, New Zealand, Queensland, Western Australia