1 cadangan
1.1 deposito di benua timur
1.1.1 Asia
Afghanistan, Indonesia, Japan, Russia
India, Pakistan, Russia
1.1.2 Afrika
Ethiopia, Kenya, Tanzania
Ethiopia, Kenya, Morocco, South Africa
1.1.3 Eropah
Greece, Hungary, Iceland, Italy, Turkey
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
1.1.4 lain
belum menemukan
belum menemukan
1.2 deposito di benua Barat
1.2.1 Amerika Utara
Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA
USA
1.2.2 Amerika Selatan
Argentina, Chili, Ekuador, peru
Kolumbia, Ekuador, peru
1.3 deposito di oceania benua
1.3.1 Australia
New Zealand, Western Australia
New South Wales, Victoria, Western Australia