1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India, Indonesia, Russia, Singapore, South Korea
India
1.1.2 Afrika
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa
South Africa, Tanzania
1.1.3 Eropah
Albania, France, Germany, Great Britain, United Kingdom
Germany, Greece, Italy, Scotland, Turkey
1.1.4 lain
belum menemukan
antarctica, tanah penggembalaan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Brazil, Kolumbia, Ekuador
Argentina, Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, South Australia, Western Australia
Central Australia, New Zealand, Queensland, Western Australia