1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
1.1.2 Afrika
Ethiopia, Ghana, Western Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa
1.1.3 Eropah
England
England, Hungary, Iceland, United Kingdom
1.1.4 lain
belum menemukan
antarctica
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Bolivia, uruguay
Argentina, Kolumbia, Ekuador
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, South Australia, Western Australia
New South Wales, New Zealand, South Australia, Western Australia