1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
India
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
1.1.2 Afrika
South Africa, Tanzania
Cameroon, East Africa, Tanzania, Western Africa
1.1.3 Eropah
Germany, Greece, Italy, Scotland, Turkey
United Kingdom
1.1.4 lain
antarctica, tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Brazil, Kolumbia, venezuela
Bolivia, Brazil, Kolumbia, Ekuador
1.3 deposito di oceania benua
1.3.1 Australia
Central Australia, New Zealand, Queensland, Western Australia
New South Wales, New Zealand, Queensland, Western Australia