1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Russia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
1.1.2 Afrika
South Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
1.1.4 lain
tanah penggembalaan, mid-Atlantik ridge
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, USA
Canada, Mexico, USA
1.2.2 Amerika Selatan
Bolivia, Brazil, Kolumbia, venezuela
Brazil, Chili, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, Queensland
New South Wales, Queensland, Victoria