1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
1.1.2 Afrika
South Africa, Tanzania
Kenya, Morocco, South Africa, Tanzania
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
1.1.4 lain
antarctica, tanah penggembalaan
tanah penggembalaan, mid-Atlantik ridge
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, USA
Canada, Mexico, USA
1.2.2 Amerika Selatan
Argentina, Brazil, Kolumbia, venezuela
Bolivia, Brazil
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, New Zealand, Queensland, Western Australia
New South Wales, Queensland, South Australia, Western Australia