1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Japan
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
1.1.2 Afrika
Rwanda, Tanzania
Kenya, Morocco, South Africa, Tanzania
1.1.3 Eropah
Not Yet Found
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
1.1.4 lain
pulau hawaii
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
Not Yet Found
New South Wales, Queensland, South Australia, Western Australia