1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey
India, Pakistan, Russia
1.1.2 Afrika
Ethiopia, Morocco, South Africa
Ethiopia, Kenya, Morocco, South Africa
1.1.3 Eropah
France, Germany, Italy, Norway, Scotland
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
1.1.4 lain
tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, Costa Rica, Panama, USA
USA
1.2.2 Amerika Selatan
Argentina, Brazil, Kolumbia, Ekuador
Kolumbia, Ekuador, peru
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, New Zealand, Queensland
New South Wales, Victoria, Western Australia