1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
1.1.2 Afrika
Namibia
South Africa, Western Africa
1.1.3 Eropah
Italy, Spain
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
belum menemukan
Brazil, Kolumbia, Paraguai
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Queensland, Victoria
Central Australia, Western Australia