1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Not Yet Found
Not Yet Found
1.1.2 Afrika
Ethiopia, Ghana, Western Africa
Uganda
1.1.3 Eropah
England
Germany, Hungary, Italy, Spain
1.1.4 lain
belum menemukan
tanah penggembalaan, mid-Atlantik ridge
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Bolivia, uruguay
Bolivia, Brazil
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, South Australia, Western Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia