1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Russia
Not Yet Found
1.1.2 Afrika
1.1.3 Eropah
Iceland
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
1.3 deposito di oceania benua
1.3.1 Australia
Not Yet Found
New South Wales, New Zealand, Queensland, South Australia, Western Australia