1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Russia, Turkey
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
1.1.2 Afrika
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda
Kenya, Morocco, South Africa, Tanzania
1.1.3 Eropah
Germany, Greece, Iceland, Norway, Poland
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
1.1.4 lain
belum menemukan
tanah penggembalaan, mid-Atlantik ridge
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, USA
Canada, Mexico, USA
1.2.2 Amerika Selatan
1.3 deposito di oceania benua
1.3.1 Australia
South Australia, Western Australia
New South Wales, Queensland, South Australia, Western Australia