1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
India, Russia
1.1.2 Afrika
1.1.3 Eropah
Italy, Spain
Germany, Greece, Italy, Scotland, Turkey
1.1.4 lain
belum menemukan
tanah penggembalaan, mid-Atlantik ridge
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Not Yet Found
Canada, USA
1.2.2 Amerika Selatan
belum menemukan
Bolivia, Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Queensland, Victoria
New Zealand, Queensland