1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
1.1.2 Afrika
Morocco, Namibia
South Africa, Western Africa
1.1.3 Eropah
Austria, Italy, Romania, Spain, Switzerland
United Kingdom
1.1.4 lain
belum menemukan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Brazil, Kolumbia
Brazil, Kolumbia, Paraguai
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, Queensland, Yorke Peninsula
Central Australia, Western Australia