1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
China, India
1.1.2 Afrika
Cameroon, East Africa, Tanzania, Western Africa
Morocco, Namibia
1.1.3 Eropah
United Kingdom
Austria, Italy, Romania, Spain, Switzerland
1.1.4 lain
belum menemukan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Bolivia, Brazil, Kolumbia, Ekuador
Brazil, Kolumbia
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Queensland, Western Australia
New South Wales, Queensland, Yorke Peninsula