1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Russia, Turkey
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
1.1.2 Afrika
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda
South Africa, Western Africa
1.1.3 Eropah
Germany, Greece, Iceland, Norway, Poland
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
Brazil
Brazil, Kolumbia, Paraguai
1.3 deposito di oceania benua
1.3.1 Australia
South Australia, Western Australia
Central Australia, Western Australia