1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Not Yet Found
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
1.1.2 Afrika
Ethiopia, Ghana, Western Africa
Kenya, Morocco, South Africa, Tanzania
1.1.3 Eropah
England
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
Argentina, Bolivia, uruguay
Bolivia, Brazil
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, South Australia, Western Australia
New South Wales, Queensland, South Australia, Western Australia