1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India, Indonesia, Russia, Singapore, South Korea
1.1.2 Afrika
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa
1.1.3 Eropah
Albania, France, Germany, Great Britain, United Kingdom
1.1.4 lain
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, USA
1.2.2 Amerika Selatan
Brazil, Kolumbia, Ekuador
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, South Australia, Western Australia