1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
1.1.2 Afrika
East Africa
Kenya, Morocco, South Africa, Tanzania
1.1.3 Eropah
Italy
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
Not Yet Found
Canada, Mexico, USA
1.2.2 Amerika Selatan
belum menemukan
Bolivia, Brazil
1.3 deposito di oceania benua
1.3.1 Australia
Queensland
New South Wales, Queensland, South Australia, Western Australia