1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Russia
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
1.1.2 Afrika
Angola, Botswana, Cameroon, Ethiopia, South Africa
South Africa, Western Africa
1.1.3 Eropah
England, Hungary, Iceland, United Kingdom
United Kingdom
1.1.4 lain
antarctica
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
1.2.2 Amerika Selatan
Argentina, Kolumbia, Ekuador
Brazil, Kolumbia, Paraguai
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, South Australia, Western Australia
Central Australia, Western Australia