1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
1.1.2 Afrika
Ethiopia, Ghana, Western Africa
East Africa, Ethiopia, Madagascar, Morocco, Mozambique
1.1.3 Eropah
England
Albania, Romania, Scotland, 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
Argentina, Bolivia, uruguay
Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, South Australia, Western Australia
Central Australia, Western Australia