1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
1.1.2 Afrika
South Africa, Tanzania
South Africa, Western Africa
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
Not Yet Found
1.1.4 lain
antarctica, tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Brazil, Kolumbia, venezuela
belum menemukan
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, New Zealand, Queensland, Western Australia
Central Australia, Western Australia