1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Afghanistan, Indonesia, Japan, Russia
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
1.1.2 Afrika
Kenya
Kenya, Morocco, South Africa, Tanzania
1.1.3 Eropah
Greece, Hungary, Iceland, Italy, Turkey
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, Mexico, USA
Canada, Mexico, USA
1.2.2 Amerika Selatan
Argentina, Chili, Ekuador, peru
Bolivia, Brazil
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand
New South Wales, Queensland, South Australia, Western Australia