1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
Not Yet Found
1.1.2 Afrika
Kenya, Morocco, South Africa, Tanzania
Egypt
1.1.3 Eropah
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
Finland, Germany, Italy, Romania, Sweden, Turkey
1.1.4 lain
tanah penggembalaan, mid-Atlantik ridge
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Bolivia, Brazil
Argentina, Bolivia, Chili, Kolumbia, Ekuador, peru
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, Queensland, South Australia, Western Australia
New Zealand, South Australia, Western Australia