1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India, Indonesia, Japan, Nepal, South Korea
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
1.1.2 Afrika
Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania
Kenya, Morocco, South Africa, Tanzania
1.1.3 Eropah
Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom
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
Mexico, USA
Canada, Mexico, USA
1.2.2 Amerika Selatan
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru, venezuela
Bolivia, Brazil
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Western Australia
New South Wales, Queensland, South Australia, Western Australia