1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
China, India, Indonesia, Russia, Singapore, South Korea
1.1.2 Afrika
Morocco, Namibia
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa
1.1.3 Eropah
Austria, Italy, Romania, Spain, Switzerland
Albania, France, Germany, Great Britain, 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, Ekuador
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, Queensland, Yorke Peninsula
New South Wales, South Australia, Western Australia