1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
1.1.2 Afrika
Angola, Botswana, Cameroon, Ethiopia, South Africa
Morocco, Namibia
1.1.3 Eropah
England, Hungary, Iceland, United Kingdom
Austria, Italy, Romania, Spain, Switzerland
1.1.4 lain
antarctica, tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, Mexico, USA
Mexico, USA
1.2.2 Amerika Selatan
Argentina, Kolumbia, Ekuador
Brazil, Kolumbia
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
New South Wales, Queensland, Yorke Peninsula