1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
1.1.2 Afrika
Angola, Egypt, Madagascar, Namibia, Nigeria
Kenya, Morocco, South Africa, Tanzania
1.1.3 Eropah
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
1.1.4 lain
belum menemukan
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, Bolivia, Brazil, Kolumbia, Ekuador
Bolivia, Brazil
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, Queensland, Western Australia
New South Wales, Queensland, South Australia, Western Australia