1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
China, India
1.1.2 Afrika
Morocco, Namibia
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa
1.1.3 Eropah
Austria, Italy, Romania, Spain, Switzerland
Germany, Iceland, Ireland, Italy, Spain
1.1.4 lain
belum menemukan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Brazil, Kolumbia
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, Queensland, Yorke Peninsula
New Zealand, Queensland, Western Australia