1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
China, India, Israel, Russia, South Korea, Thailand, Turkey
1.1.2 Afrika
Kenya, Morocco, South Africa, Tanzania
Ethiopia, Morocco, South Africa, Zimbabwe
1.1.3 Eropah
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
England, Italy, Norway, Scotland, Sweden, United Kingdom
1.1.4 lain
tanah penggembalaan, mid-Atlantik ridge
tanah penggembalaan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, Mexico, USA
Bahamas, Canada, USA
1.2.2 Amerika Selatan
Bolivia, Brazil
Brazil, Kolumbia, venezuela
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, Queensland, South Australia, Western Australia
New Zealand, Queensland, Western Australia