1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Russia
China, India, Indonesia, Japan, North Korea, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Tajikistan, Thailand
1.1.2 Afrika
Angola, Botswana, Cameroon, Ethiopia, South Africa
Egypt, Ethiopia, Ghana, South Africa, Western Africa
1.1.3 Eropah
England, Hungary, Iceland, United Kingdom
Austria, England, Finland, France, Germany, Greece, Spain, Sweden, Switzerland, United Kingdom
1.1.4 lain
antarctica, tanah penggembalaan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Canada, Mexico, USA
Canada, USA
1.2.2 Amerika Selatan
Argentina, Kolumbia, Ekuador
Kolumbia
1.3 deposito di oceania benua
1.3.1 Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia
Central Australia, New Zealand, Queensland